Advanced Synthesis & Catalysis

Cover image for Vol. 357 Issue 13

Editor: Joe P. Richmond, Chairman of the Editorial Board: Ryoji Noyori

Impact Factor: 5.663

ISI Journal Citation Reports © Ranking: 2014: 2/70 (Chemistry Applied); 6/57 (Chemistry Organic)

Online ISSN: 1615-4169

Associated Title(s): Angewandte Chemie International Edition, Asian Journal of Organic Chemistry, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemCatChem, European Journal of Organic Chemistry

357_12/2015Cover Picture: Construction of Multifunctionalized Azopyrazoles by Silver- Catalyzed Cascade Reaction of Diazo Compounds (Adv. Synth. Catal. 12/2015)

The front cover picture, provided by Yong Rok Lee and co-worker, illustrates the catalytic application of silver for the construction of multifunctionalized azopyrazoles via cascade reaction of a-diazo-b-keto esters and arylhydrazines. The synthesis of azopyrazoles bearing two different aromatic rings from 4-diazopyrazol-3-ones and aryhydrazine hydrochlorides is a unique advantage of this protocol. Silver-catalyzed in situ pyrazole formation, N–H insertion, and oxidation have great potential for the advancement in the area of carbenoid chemistry. Details can be found in the full paper on pages 2657–2664 (R. P. Pandit, Y. R. Lee, Adv. Synth. Catal.­ 2015, 357, 2657–2664; DOI: 10.1002/adsc.201500197

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