Thiamin ylide: isolation and identification

  title={Thiamin ylide: isolation and identification},
  author={Hirohiko Sugimoto and Kentaro Hirai},
The action of two equivalents of NaOEt on thiamin hydrochloride in EtOH gives a neutral compound. Spectroscopic data and its chemical behavior indicated that the compound is thiamin ylide 1. The chemical behaviors of 1 are entirely consistent with those of in situ generated thiamin ylide.