New evidence supporting bis(thiazolin-2-ylidene)s as the actual catalytic species in the benzoin condensation

Article abstract of DOI:10.1016/0040-4039(93)85116-E

Polymethylene-bridged (n = 2-8) thiazolium and benzothiazolium salts (plus bases) are used as catalysts for the benzoin condensation and it is found that catalytic activity depends strongly on the methylene bridge length. This result supports a previous p