Angewandte Chemie International Edition

Cover image for Vol. 49 Issue 26

June 14, 2010

Volume 49, Issue 26

Pages 4315–4513

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
    1. Cover Picture: High-Yielding Tandem Hydroformylation/Hydrogenation of a Terminal Olefin to Produce a Linear Alcohol Using a Rh/Ru Dual Catalyst System (Angew. Chem. Int. Ed. 26/2010) (page 4315)

      Kohei Takahashi, Makoto Yamashita, Takeo Ichihara, Koji Nakano and Kyoko Nozaki

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201002254

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      A volleyball is hit from the academic to the industrial side of the net and symbolizes the potential utility of a new dual catalyst system—a combination of xantphos/[Rh(acac)(CO)2] and Shvo's catalyst—in both fields. In their Communication on page 4488 ff. K. Nozaki et al. describe the highly efficient production of n-undecanol using syngas and this catalytic system. The one-pot process involves hydroformylation catalyzed by rhodium and hydrogenation catalyzed by ruthenium.

  2. Inside Cover

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
    1. Inside Cover: Facile, Template-Free Synthesis of Stimuli-Responsive Polymer Nanocapsules for Targeted Drug Delivery (Angew. Chem. Int. Ed. 26/2010) (page 4316)

      Eunju Kim, Dongwoo Kim, Hyuntae Jung, Jiyeong Lee, Somak Paul, Narayanan Selvapalam, Yosep Yang, Namseok Lim, Chan Gyung Park and Kimoon Kim

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.201002201

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      Open Sesame! A template-free synthetic approach to stimuli-responsive polymer nanocapsules that are potentially useful for targeted drug delivery has been developed. In their Communication on p. 4405 ff., K. Kim and co-workers show that reductively labile polymer nanocapsules composed of CB[6] and disulfide bridges allow not only facile, noncovalent surface modification for targeted delivery but also the release of encapsulated cargo in response to a predefined redox stimulus in an intracellular environment.

  3. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
  4. News

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
  5. Obituary

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
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    10. Communications
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    1. Björn O. Roos (1937–2010) (page 4334)

      Werner Kutzelnigg

      Version of Record online: 20 MAY 2010 | DOI: 10.1002/anie.201002676

  6. Book Review

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
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    1. Guide to Fluorine NMR for Organic Chemists. By William R. Dolbier. (page 4335)

      Véronique Gouverneur

      Version of Record online: 31 MAY 2010 | DOI: 10.1002/anie.201002423

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      John Wiley & Sons, Hoboken 2009. 272 pp., hardcover € 69.90.—ISBN 978-0470193419

  7. Highlight

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
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    1. Biofuels

      Pentenoic Acid Pathways for Cellulosic Biofuels (pages 4336–4338)

      Regina Palkovits

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.201002061

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      Woodn't it be nice? Pentenoic acid is a possible answer to various challenges associated with cellulose-derived biofuels. Starting from (ligno)cellulose, enables a range of potential biofuels to become accessible. Such biofuels are compatible with today's engines and could be prepared without the need for external hydrogen.

  8. Reviews

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
    1. Nobel Lectures

      Hibernating Bears, Antibiotics, and the Evolving Ribosome (Nobel Lecture) (pages 4340–4354)

      Prof. Dr. Ada Yonath

      Version of Record online: 29 APR 2010 | DOI: 10.1002/anie.201001297

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      A complex structure: The 2009 Nobel Prize was awarded for investigations into the structure and function of the ribosome, the protein factory of the cell. The Laureates describe first hand the course of the discoveries in this area, from the beginning of their research to the current detailed understanding.

    2. Unraveling the Structure of the Ribosome (Nobel Lecture) (pages 4355–4380)

      V. Ramakrishnan

      Version of Record online: 9 JUN 2010 | DOI: 10.1002/anie.201001436

      A complex structure: The 2009 Nobel Prize was awarded for investigations into the structure and function of the ribosome, the protein factory of the cell. The Laureates describe first hand the course of the discoveries in this area, from the beginning of their research to the current detailed understanding.

    3. From the Structure and Function of the Ribosome to New Antibiotics (Nobel Lecture) (pages 4381–4398)

      Thomas A. Steitz

      Version of Record online: 27 MAY 2010 | DOI: 10.1002/anie.201000708

      A complex structure: The 2009 Nobel Prize was awarded for investigations into the structure and function of the ribosome, the protein factory of the cell. The Laureates describe first hand the course of the discoveries in this area, from the beginning of their research to the current detailed understanding.

  9. Communications

    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
    1. Vibrational Spectroscopy

      Probing Vibrational Anisotropy with Nuclear Resonance Vibrational Spectroscopy (pages 4400–4404)

      Jeffrey W. Pavlik, Alexander Barabanschikov, Allen G. Oliver, E. Ercan Alp, Wolfgang Sturhahn, Jiyong Zhao, J. Timothy Sage and W. Robert Scheidt

      Version of Record online: 26 APR 2010 | DOI: 10.1002/anie.201000928

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      In-depth probing: A NRVS single-crystal study (NRVS=nuclear resonance vibrational spectroscopy) has provided detailed information on the in-plane modes of nitrosyl iron porphyrinate [Fe(oep)(NO)] (see picture; oep=octaethylporphyrin). The axial nitrosyl ligand controls the direction of the in-plane iron motion.

    2. Polymer Nanostructures

      Facile, Template-Free Synthesis of Stimuli-Responsive Polymer Nanocapsules for Targeted Drug Delivery (pages 4405–4408)

      Eunju Kim, Dongwoo Kim, Hyuntae Jung, Jiyeong Lee, Somak Paul, Narayanan Selvapalam, Yosep Yang, Namseok Lim, Chan Gyung Park and Kimoon Kim

      Version of Record online: 12 MAY 2010 | DOI: 10.1002/anie.201000818

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      Open Sesame! A synthetic approach to stimuli-responsive polymer nanocapsules has been developed. The reductively labile polymer nanocapsule allows for not only facile, noncovalent surface modification but also the release of encapsulated cargo in response to a predefined redox stimulus in an intracellular environment.

    3. Rotaxane Hydrogels

      Photoresponsive Pseudopolyrotaxane Hydrogels Based on Competition of Host–Guest Interactions (pages 4409–4413)

      Xiaojuan Liao, Guosong Chen, Xiaoxia Liu, Wenxue Chen, Fener Chen and Ming Jiang

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.201000141

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      Competitive advantage: The reversible assembly and disassembly of a polyethylene glycol (PEG)/α-cyclodextrin (α-CD) pseudopolyrotaxane (PPR) hydrogel is achieved (see picture). In a ternary system with a photoresponsive azobenzene compound, alternating UV and visible irradiation causes reversible sol–gel transitions. Thus the widely studied PEG/α-CD PPR hydrogel is proved to be “active” in supramolecular chemistry.

    4. Lithium Batteries

      Dynamic Visualization of the Electric Potential in an All-Solid-State Rechargeable Lithium Battery (pages 4414–4417)

      Kazuo Yamamoto, Yasutoshi Iriyama, Toru Asaka, Tsukasa Hirayama, Hideki Fujita, Craig A. J. Fisher, Katsumasa Nonaka, Yuji Sugita and Zempachi Ogumi

      Version of Record online: 12 MAY 2010 | DOI: 10.1002/anie.200907319

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      Electron holography reveals how lithium ions are distributed during the charge/discharge cycle of a lithium battery. A steep potential drop and a gradually extended slope (ca. 1.5 μm) due to the electrical double layer are formed near the electrode/electrolyte interface, where the resistance to lithium ion transfer occurs.

    5. Thin-Film Catalysis

      The Interplay between Structure and CO Oxidation Catalysis on Metal-Supported Ultrathin Oxide Films (pages 4418–4421)

      Ying-Na Sun, Livia Giordano, Jacek Goniakowski, Mikolaj Lewandowski, Zhi-Hui Qin, Claudine Noguera, Shamil Shaikhutdinov, Gianfranco Pacchioni and Hans-Joachim Freund

      Version of Record online: 12 MAY 2010 | DOI: 10.1002/anie.201000437

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      Thickness matters: Ultrathin oxide films on metals can greatly enhance catalytic activity, for example, in CO oxidation on an FeO(111) film grown on a Pt(111) substrate. Under the reaction conditions, the bilayer FeO film restructures to form a trilayer OFeO film (see picture). Experimental evidence for the structure/morphology of the film and theoretical modeling of the mechanism of its formation and CO oxidation on its surface are presented.

    6. Enriched with Iron

      A Nanoscopic 3D Polyferrocenyl Assembly: The Triacontakaihexa(ferrocenylmethylthiolate) [Ag484-S)62/3-SCH2Fc)36] (pages 4422–4424)

      Siawash Ahmar, Daniel G. MacDonald, Niranjan Vijayaratnam, Taylor L. Battista, Mark S. Workentin and John F. Corrigan

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201000686

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      The molecular nanocluster [Ag484-S)62/3-SCH2Fc)36] (1) (see picture; Ag blue, S yellow, Fe orange, C gray; Fc=ferrocenyl) has been prepared in good yield and characterized by single-crystal X-ray diffraction. The 36 ferrocenylmethylthiolate ligands envelop the Ag[BOND]S core. Cyclic voltammetry of 1 displays one reversible oxidation wave.

    7. Homogeneous Catalysis

      Recycling a Homogeneous Catalyst through a Light-Controlled Phase Tag (pages 4425–4429)

      Guiyan Liu and Jianhui Wang

      Version of Record online: 11 MAY 2010 | DOI: 10.1002/anie.200906034

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      A homogeneous ruthenium–carbene complex was tagged with a light-responding nitrobenzospiropyran group to control its solubility through reversible conversion between its neutral (lipophilic) and ionic (lipophobic) states using light irradiation (see scheme; Mes=mesityl). This tagged complex has significant catalytic activity in ring-closing metathesis reactions and was recycled several times.

    8. Quantum Dots

      Water-Soluble Fluorescent Carbon Quantum Dots and Photocatalyst Design (pages 4430–4434)

      Haitao Li, Xiaodie He, Zhenhui Kang, Hui Huang, Yang Liu, Jinglin Liu, Suoyuan Lian, Chi Him A. Tsang, Xiaobao Yang and Shuit-Tong Lee

      Version of Record online: 11 MAY 2010 | DOI: 10.1002/anie.200906154

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      Size control: A one-step alkali metal-assisted electrochemical method for the fabrication of carbon quantum dots (CQDs) with size-dependent photoluminescence is presented (see picture). Their upconversion luminescence may provide a way for the development of novel photocatalysts.

    9. Imaging Mass Spectrometry

      Imaging Mass Spectrometry with a Low-Temperature Plasma Probe for the Analysis of Works of Art (pages 4435–4437)

      Yueying Liu, Xiaoxiao Ma, Ziqing Lin, Mingjia He, Guojun Han, Chengdui Yang, Zhi Xing, Sichun Zhang and Xinrong Zhang

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.200906975

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      What a picture! Imaging mass spectrometry of seal patterns on paintings and calligraphy was achieved by using a mass spectrometric technique with a low-temperature plasma probe. The non-invasive probe can distinguish genuine seals from counterfeit examples with good spatial resolution.

    10. Molecular Logic

      Colorimetric Logic Gates Based on Supramolecular DNAzyme Structures (pages 4438–4442)

      Sai Bi, Yameng Yan, Shuangyuan Hao and Shusheng Zhang

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201000840

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      It′s logical! A set of DNAzyme-based Boolean logic gates consists of a series of supramolecular structures (see picture). Two metal ions (Mg2+ and Pb2+) act as inputs and gold nanoparticle (AuNP)/DNA probes as output reporters for colorimetric detection. Fast performance of the logic system at ambient temperature is achieved.

    11. Cluster Chemistry

      Structural Effects of Sodium Cations in Polynuclear, Multicubane-Type Mixed Na–Ni Complexes (pages 4443–4446)

      Jun Zhang, Peili Teo, Roberto Pattacini, Anthony Kermagoret, Richard Welter, Guillaume Rogez, T. S. Andy Hor and Pierre Braunstein

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201001412

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      Cubanes and beyond: Diversity and originality characterize the NiII complexes obtained from sodium (pyridine-2-yl)methanolate. The ligand/metal ratio and the presence of Na+ are key parameters to explain the formation of Ni4Na3, Ni6Na, or Ni7 polynuclear complexes with magnetically interacting centers. Such observations are relevant to the possible in situ formation of unexpected and possibly overlooked active species in catalytic reactions.

    12. Cross-Coupling

      Cross-Coupling Reactions through the Intramolecular Activation of Alkyl(triorgano)silanes (pages 4447–4450)

      Yoshiaki Nakao, Masahide Takeda, Takuya Matsumoto and Tamejiro Hiyama

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201000816

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      Cross-Si-ing the Jordan: Cross-coupling reactions of 2-(2-hydroxyprop-2-yl)phenyl-substituted alkylsilanes with a variety of aryl halides proceed in the presence of palladium and copper catalysts. The use of K3PO4 base allows for highly chemoselective alkyl coupling with both primary and secondary alkyl groups (Alk).

    13. C[BOND]H Activation

      Nickel-Catalyzed Hydroheteroarylation of Vinylarenes (pages 4451–4454)

      Yoshiaki Nakao, Natsuko Kashihara, Kyalo Stephen Kanyiva and Tamejiro Hiyama

      Version of Record online: 30 APR 2010 | DOI: 10.1002/anie.201001470

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      In the nickel of time: A nickel/carbene catalyst effects the hydroheteroarylation of vinylarenes to give 1,1-diarylethanes that contain various heteroaryl moieties with excellent regioselectivity. EWG= electron-withdrawing group.

    14. Domino Reactions

      Palladium-Catalyzed Arylative Ring-Opening Reactions of Norbornenols: Entry to Highly Substituted Cyclohexenes, Quinolines, and Tetrahydroquinolines (pages 4455–4458)

      Michael Waibel and Nicolai Cramer

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.201001752

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      Going retro: Palladium-catalyzed retro-allylations from norbornene-derived tertiary alcohols participate in coupling reactions with aryl- or vinylhalides to provide tetrasubstituted cyclohexenes with excellent regio- and diastereoselectivity (see scheme). This procedure was also exploited in domino reactions to access highly functionalized quinolines and tetrahydroquinolines.

    15. DNA Logic Gates

      Molecular Logic Gates Connected through DNA Four-Way Junctions (pages 4459–4462)

      Alex Lake, Stephen Shang and Dmitry M. Kolpashchikov

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.200907135

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      Simply logical: This study introduces connectable molecular logic gates made of DNA. Transfer of oligonucleotide input/output signals from gate to gate is achieved by the formation of complexes that contain DNA four-way junctions when the signal is high; these complexes disassemble when the signal is low.

    16. Asymmetric Catalysis

      Asymmetric Nazarov Reaction Catalyzed by Chiral Tris(oxazoline)/Copper(II) (pages 4463–4466)

      Peng Cao, Chao Deng, You-Yun Zhou, Xiu-Li Sun, Jun-Cheng Zheng, Zuowei Xie and Yong Tang

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.200907266

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      Beverly Hills copper(II): A highly efficient catalytic asymmetric Nazarov reaction has been developed through control of the enantioselectivity of the cyclization step, affording chiral O-heterohexahydroindenones in excellent yields with excellent enantioselectivity and diastereoselectivity. HFIP=hexafluoro-2-propanol, BArF= tetrakis[3,5-bis(trifluoromethyl)phenyl] borate.

    17. Organocatalysis

      Asymmetric [3+2] Cycloadditions of Allenoates and Dual Activated Olefins Catalyzed by Simple Bifunctional N-Acyl Aminophosphines (pages 4467–4470)

      Hua Xiao, Zhuo Chai, Chang-Wu Zheng, Ying-Quan Yang, Wen Liu, Jun-Kang Zhang and Gang Zhao

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/anie.201000446

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      Bifunctional catalyst: Simple bifunctional N-Acyl aminophosphines such as 1 were developed to catalyze the first asymmetric [3+2] cycloaddition between allenoates and dual activated olefins. The cycloaddition reactions afford multifunctional chiral cyclopentenes with exclusive regioselectivity, and good to excellent enantioselectivity and yields.

    18. Defensive Sesterterpenoids

      Glandular Trichomes of Leucosceptrum canum Harbor Defensive Sesterterpenoids (pages 4471–4475)

      Shi-Hong Luo, Qian Luo, Xue-Mei Niu, Ming-Jin Xie, Xu Zhao, Bernd Schneider, Jonathan Gershenzon and Sheng-Hong Li

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.201000449

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      On the defense: Sesterterpenoid 1 and its 11-dehydroxy derivative, which possess a unique C25 skeleton, have been isolated from the glandular trichomes of Leucosceptrum canum. They have potent antifeedant activities and inhibitory effects against pathogenic fungi, which suggest a role of sesterterpenoids in plant defense.

    19. Asymmetric Catalysis

      Orthogonal Enantioselectivity Approaches Using Homogeneous and Heterogeneous Catalyst Systems: Friedel–Crafts Alkylation of Indole (pages 4476–4478)

      Hun Young Kim, Sungkyung Kim and Kyungsoo Oh

      Version of Record online: 28 MAY 2010 | DOI: 10.1002/anie.201001484

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      With or without support? The complementary homogeneous and heterogeneous catalyst systems have been developed for the catalytic asymmetric Friedel–Crafts alkylation of indoles with nitroalkenes, in which either of the enantiomeric products 2 could be selectively obtained under the suitable reaction conditions (i.e. with or without an added solid support; see scheme).

    20. Cellulosic Biofuels

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      Valeric Biofuels: A Platform of Cellulosic Transportation Fuels (pages 4479–4483)

      Jean-Paul Lange, Richard Price, Paul M. Ayoub, Jurgen Louis, Leo Petrus, Lionel Clarke and Hans Gosselink

      Version of Record online: 5 MAY 2010 | DOI: 10.1002/anie.201000655

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      Fueling the future: Valeric esters can be produced by acid hydrolysis of lignocellulose to levulinic acid, followed by hydrogenation to valeric acid and its subsequent esterification (see scheme). Valeric biofuels are fully compatible for blending with gasoline or diesel, and have passed a road trial of 250 000 km.

    21. Nanomaterials

      Aqueous-Phase Synthesis of Single-Crystal Ceria Nanosheets (pages 4484–4487)

      Taekyung Yu, Byungkwon Lim and Younan Xia

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.201001521

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      The evolution of sheet morphology for single-crystal ceria nanosheets with a thickness of about 2.2 nm and lateral dimensions up to 4 μm (see picture), involves two-dimensional self-organization of the initially formed ceria nanocrystals, followed by recrystallization. Ceria nanosheets exhibit an unusually large optical band gap energy due to the quantum size effect associated with their extremely small thickness.

    22. Alcohol Synthesis

      High-Yielding Tandem Hydroformylation/Hydrogenation of a Terminal Olefin to Produce a Linear Alcohol Using a Rh/Ru Dual Catalyst System (pages 4488–4490)

      Kohei Takahashi, Makoto Yamashita, Takeo Ichihara, Koji Nakano and Kyoko Nozaki

      Version of Record online: 5 MAY 2010 | DOI: 10.1002/anie.201001327

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      A dual catalyst system has been developed for tandem hydroformylation/hydrogenation to produce n-undecanol from 1-decene in one pot. A combination of xantphos/[Rh(acac)(CO)2] and Shvo's catalyst (1) afforded the best results (see scheme; acac=acetylacetonate, DMA=N,N-dimethylacetamide). Polar solvents effectively suppressed the formation of undecyl formate.

    23. Synthetic Methods

      Metal-Free, Aerobic Dioxygenation of Alkenes Using Hydroxamic Acids (pages 4491–4494)

      Valerie A. Schmidt and Erik J. Alexanian

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.201000843

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      One dioxygenation please, hold the metal: In the presence of either oxygen or air as the sole oxidant and external oxygen atom source, a variety of unsaturated hydroxamic acids afford cyclic hydroxamates that are readily converted into 1,2-diols, with the potential for high levels of reaction stereocontrol.

    24. Cycloadditions

      Tuning Electronic and Steric Effects: Highly Enantioselective [4+1] Pyrroline Annulation of Sulfur Ylides with α,β-Unsaturated Imines (pages 4495–4498)

      Liang-Qiu Lu, Ji-Ji Zhang, Fang Li, Ying Cheng, Jing An, Jia-Rong Chen and Wen-Jing Xiao

      Version of Record online: 10 MAY 2010 | DOI: 10.1002/anie.201000755

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      A change in tune: A novel [4+1] annulation between atropisomeric sulfur ylides 1 and unsaturated imines 2 was developed. The method allows the synthesis of enantioenriched pyrroline products 3 in high yield and with excellent stereocontrol. The origin of stereoinduction was primarily rationalized by a conformational analysis of the ylides.

    25. Catalytic Oxidation

      Selective Oxidation of Glycerol under Acidic Conditions Using Gold Catalysts (pages 4499–4502)

      Alberto Villa, Gabriel M. Veith and Laura Prati

      Version of Record online: 11 MAY 2010 | DOI: 10.1002/anie.201000762

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      Skip the bases! H-mordenite-supported PtAu nanoparticles are highly active and selective in the oxidation of glycerol under acidic conditions, which allows the direct preparation of free acids (see picture). The high selectivity for C3 compounds results from the negligible formation of H2O2, in contrast to PtAu nanoparticles supported on activated carbon.

    26. Structure Determination

      The Crystal Structure of D-Ribose—At Last! (pages 4503–4505)

      Dubravka Šišak, Lynne B. McCusker, Giorgia Zandomeneghi, Beat H. Meier, Dieter Bläser, Roland Boese, W. Bernd Schweizer, Ryan Gilmour and Jack D. Dunitz

      Version of Record online: 12 MAY 2010 | DOI: 10.1002/anie.201001266

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      Better late than never! The β-furanose form of D-ribose, present in countless biomolecules, does not occur in the crystalline compound. X-ray diffraction and NMR experiments show that D-ribose occurs in two crystal forms that contain β- and α-pyranose forms in various ratios.

    27. Enzymatic Synthesis

      Exploiting the Regioselectivity of Baeyer–Villiger Monooxygenases for the Formation of β-Amino Acids and β-Amino Alcohols (pages 4506–4508)

      Jessica Rehdorf, Marko D. Mihovilovic and Uwe T. Bornscheuer

      Version of Record online: 7 MAY 2010 | DOI: 10.1002/anie.201000511

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      To the left or to the right? The regioselective insertion of oxygen in Baeyer–Villiger monooxygenase (BVMO) catalyzed oxidations not only affords the expected protected β-amino alcohol, but can also be used to provide access to β-amino acids as exemplified for β-leucine (see scheme; PG=protecting group).

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    1. Top of page
    2. Cover Picture
    3. Inside Cover
    4. Graphical Abstract
    5. News
    6. Obituary
    7. Book Review
    8. Highlight
    9. Reviews
    10. Communications
    11. Preview
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