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Copyright © 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 354, Issue 16
Pages 2889–3126
Article first published online: 9 NOV 2012 | DOI: 10.1002/adsc.201290031
The cover picture, provided by Qi-Lin Zhou, shows the example of an exceptionally highly efficient chiral catalyst. The catalyst is a very stable dihydride iridium complex of a tridentate chiral spiro P-N-N ligand based on the 1,1′-spirobiindane skeleton, which exhibits excellent enantioselectivity and extremely high turnover number (in excess of one million) for the hydrogenation of both aryl ketones and β-aryl-β-keto esters. Although little is known about the mechanism of this iridiumcatalyzed carbonyl group hydrogenation reaction, a non-classical metalligand bifunctional mechanism deserves to be recommended to interpret the high efficiency of this catalyst. With the help of KO-t-Bu and under an H2 atmosphere, the dihydride iridium complex is converted to a trihydride iridium complex. After combination of the substrate with the trihydride iridium complex, a cyclic six-membered transition state is formed. The hydridic IrH and protic NH of the catalyst are simultaneously transferred to the carbonyloxygen double bond of the substrate, resulting in a chiral alcohol and a hydrido amido iridium complex. Finally, the hydrido amido iridium complex is hydrogenated with H2 to regenerate the trihydride iridium complex.
Article first published online: 9 NOV 2012 | DOI: 10.1002/adsc.201290032
Hao Yuan, Woo-Jin Yoo, Hiroyuki Miyamura and Shū Kobayashi
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200880
Pinar Kasaplar, Paola Riente, Caroline Hartmann and Miquel A. Pericàs
Article first published online: 5 OCT 2012 | DOI: 10.1002/adsc.201200526
Nitul Ranjan Guha, Chennayala Bal Reddy, Nidhi Aggarwal, Dharminder Sharma, Arun K. Shil, Bandna and Pralay Das
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200418
Yaxi Yang, Bing Zhou and Yuanchao Li
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200401
Nuno R. Candeias, Carolina Carias, Luis F. R. Gomes, Vânia André, M. Teresa Duarte, Pedro M. P. Gois and Carlos A. M. Afonso
Article first published online: 10 OCT 2012 | DOI: 10.1002/adsc.201200101
Mathieu Candy, Rebekka Anna Bohmann and Carsten Bolm
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200754
Xianying Shi and Chao-Jun Li
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200690
Zheng-Jun Quan, Wang-Hua Hu, Xiao-Dong Jia, Zhang Zhang, Yu-Xia Da and Xi-Cun Wang
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200402
Andrea Porcheddu and Lidia De Luca
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200659
Nilupa R. Amarasinghe, Peter Turner and Matthew H. Todd
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200558
Teruhisa Tsuchimoto, Masakazu Fujii, Yoshihiko Iketani and Masaru Sekine
Article first published online: 10 OCT 2012 | DOI: 10.1002/adsc.201200310
Xing-Li Zhu, Wu-Jun He, Liang-Liang Yu, Chang-Wu Cai, Zong-Le Zuo, Da-Bin Qin, Quan-Zhong Liu and Lin-Hai Jing
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200286
Xinyuan Fan, Sonia Sayalero and Miquel A. Pericàs
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200887
Hao Wu, Zhiqing Tian, Lili Zhang, Yaodong Huang and Yongmei Wang
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200488
R. Arun Kumar, G. Saidulu, K. Rajendra Prasad, G. Sathish Kumar, B. Sridhar and K. Rajender Reddy
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200679
Yeon Ho Cho, Chun-Young Lee, Deok-Chan Ha and Cheol-Hong Cheon
Article first published online: 30 OCT 2012 | DOI: 10.1002/adsc.201200684
Thomas Pesnot, Markus C. Gershater, John M. Ward and Helen C. Hailes
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200641
Luis F. Godinho, Carlos R. Reis, Ronald van Merkerk, Gerrit J. Poelarends and Wim J. Quax
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200211
Michael G. C. Kahn, Joakim H. Stenlid and Marcus Weck
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200528
José L. Núñez-Rico, Pablo Etayo, Héctor Fernández-Pérez and Anton Vidal-Ferran
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200477
Simone Manzini, César A. Urbina Blanco and Steven P. Nolan
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200411
Senthilkumar Muthaiah and Soon Hyeok Hong
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200532
María Teresa Herrero, Jokin Díaz de Sarralde, Raul SanMartin, Laura Bravo and Esther Domínguez
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200430
Pamela G. Alsabeh, Mark Stradiotto, Helfried Neumann and Matthias Beller
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200580
Yong Luo, Xiaolin Pan and Jie Wu
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200606
Alexander S. Kucherenko, Dmitry E. Siyutkin, Albert G. Nigmatov, Alexander O. Chizhov and Sergei G. Zlotin
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200338
Shaoyu Li, Zhiming Li and Jie Wu
Article first published online: 6 NOV 2012 | DOI: 10.1002/adsc.201200374
Shirin Safaei, Iraj Mohammadpoor-Baltork, Ahmad R. Khosropour, Majid Moghadam, Shahram Tangestaninejad and Valiollah Mirkhani
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200191
Benoit Wahl, Hélène Bonin, André Mortreux, Steven Giboulot, Frédéric Liron, Giovanni Poli and Mathieu Sauthier
Article first published online: 10 OCT 2012 | DOI: 10.1002/adsc.201200378
Olga V. Serdyuk, Alexandru Zamfir, Frank Hampel and Svetlana B. Tsogoeva
Article first published online: 10 OCT 2012 | DOI: 10.1002/adsc.201200293
Jian-Jun Feng, Miao Huang, Zi-Qi Lin and Wei-Liang Duan
Article first published online: 4 NOV 2012 | DOI: 10.1002/adsc.201200133