Aryl-Substituted Sulfonium Betaines: Preparation and Use in the Epoxidation of Aldehydes
作者:David C. Forbes、Sejal R. Amin、Christie J. Bean、Michael C. Standen
DOI:10.1021/jo061370u
日期:2006.10.1
Thermally induced decarboxylation of carboxymethylsulfonium betaines results in formation of the corresponding sulfur ylides in situ. Decarboxylation rates for a range of arylcarboxymethylsulfonium betaine salts have been determined using NMR spectroscopy, and the efficiency of ylide generation and trapping has been evaluated via methylidene transfer to a range of aldehydes to form epoxides.