ChemInform Abstract: Tunable Carbonyl Ylide Reactions: Selective Synthesis of Dihydrofurans and Dihydrobenzoxepines.

✍ Scribed by Jiao-Long Zhou; Yong Liang; Chao Deng; Haolai Zhou; Zheng Wang; Xiu-Li Sun; Jun-Cheng Zheng; Zhi-Xiang Yu; Yong Tang

• Publisher: John Wiley and Sons
• Year: 2011
• Weight: 35 KB
• Volume: 43
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.201202033

✦ Synopsis

Abstract

DFT calculations show, that the bulkiness of the ligand controls the reaction between α‐benzylidene‐β‐dicarbonyl compounds (I) and diazoacetate (II) to give either the five‐ or seven‐membered products (III)/(V) or (VI)/(VII).