Abstract
In recent years, thiocarbonyl ylides found new applications as useful building blocks in syntheses of sulfur containing heterocycles. They were also shown to play an important role as key intermediates in two-step [3+2] cycloaddition reactions. Strategies explored for the generation of thiocarbonyl ylides and their typical reactions including [3+2] cycloadditions, 1,3- and 1,5-electrocyclizations, additions of OH, SH, and NH groups, and rearrangements are presented. Reactivities of isolable, push-pull stabilized thiocarbonyl ylides are compared with those proposed as transient species.
Mloston, Grzegorz