Cycloaddition reaction of triphenylphosphoranylideneketene and triphenylphosphoranylideneketenimine with 4,5tetramethylene-1,2-dithiol-3thione

ABSTRACT

Although triphenylphosphoranylideneketene [la] and triphenylphosphoranylideneketenimine [Ib] are known to react with carbonyl compounds e.g. aldehydes and ketones their reaction with thio-carbonyl compounds has yet been not reported. Thus, it appeared of a particular significance to investigate their reaction with 4, 5-tetrame-thylene-l,2-dithiol-3-thione [II]