Palladium-catalyzed carbonylation of vinyl halides: a route to the synthesis of .alpha.-methylene lactones
作者:Larry D. Martin、J. K. Stille
DOI:10.1021/jo00140a007
日期:1982.9
The “Aqueous” Prins Reaction
作者:Danielle L. Aubele、Christopher A. Lee、Paul E. Floreancig
DOI:10.1021/ol0359259
日期:2003.11.1
are employed as oxocarbenium ion progenitors and allylsilanes are used as nucleophiles. Cyclizations proceed efficiently inside Lewis acidic micelles in water, demonstrating that colloidal suspensions can protect highly electrophilic intermediates from hydrolysis. Reactions are experimentally facile and useful in the preparation of a variety of vinyl- and aryl-substituted tetrahydropyrans with excellent