Synthesis of 2(3H)-imidazolethiones and 2(3H)-imidazolones from β,γ-alkynyl carbanilides
摘要:
beta, gamma-Acetylenic carbanilides cyclize and subsequently isomerize to 2(3H)-Imidazolethiones and 2(3H)-Imidazolones upon treatment with ammoniacal H2S and KOH in t-BuOH respectively.