Aryl-substituted sulfonium betaines: preparation and use in the epoxidation of aldehydes.
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.
Forbes
David C
DC
Department of Chemistry, University of South Alabama, Mobile, Alabama 36688, USA. dforbes@jaguar1.usouthal.edu
Amin
Sejal R
SR
Bean
Christie J
CJ
Standen
Michael C
MC