Stereochemical issues on the fragmentation of non-enolisable β-heterosubstituted-cyclopentanones with wet and anhydrous potassium hydroxide
作者:Alain Krief、Adrian Kremer
DOI:10.1016/j.tetlet.2010.03.119
日期:2010.6
Tandem Haller-Bauer-scission/Grob-fragmentation reaction of cyclopentanone bearing a leaving group in beta-position involves antiperiplanar arrangements which can be also achieved from epimeric derivatives, probably due to the high flexibility of the five-membered ring. We have observed that epimeric compounds react at different rates if the leaving group is a halogen and leads to very different types of compounds when it is a mesyl group. (C) 2010 Elsevier Ltd. All rights reserved.
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