Bifunctionalized sulfonium ylides – sulfonium acyl sulfonylmethylides – were directly
and efficiently prepared from various acetylenic sulfones and aliphatic sulfoxides
under heating conditions. The current method features short reaction time, low cost,
readily available starting materials, convenient operation, and purification, providing
an efficient access to widely applied bifunctionalized sulfonium ylides.
Key words
sulfonium ylide - DMSO - sulfoxide - sulfone - alkyne