A Mild Stereo??and Enantiospecific Conversion of 2, 3??Diaryl??Substituted Oxiranes into 2, 2??Dimethyl??1, 3??Dioxolanes by an Acetone/Amberlyst 15 System
A Solladié??Cavallo, E Choucair, M Balaz…
Index: Solladie-Cavallo, Ariette; Choucair, Elias; Balaz, Milan; Lupattelli, Paolo; Bonini, Carlo; Di Blasio, Nadia European Journal of Organic Chemistry, 2006 , # 13 p. 3007 - 3011
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Citation Number: 10
Abstract
Abstract Amberlyst 15 is an efficient catalyst for the reaction of aryl-substituted oxiranes with acetone to prepare 2, 2-dimethyl-1, 3-dioxolanes in high yields. trans-2, 3-Diaryloxiranes afford trans-acetonides enantiospecifically at room temperature, and the use of enantiopure 2, 3-diaryloxiranes results in no loss of stereochemical integrity in the resulting trans- acetonides.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
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