75390-42-0Relevant articles and documents
The Reaction of N-Sulfinylamines with Isocyanides and Sythesis of 2,5-Diaryl-3,4-diarylimino-1,2,5-thiadiazolidin-S-oxides
Beckert, R.,Mayer, R.
, p. 273 - 280 (2007/10/02)
N-Sulfinylamines 1 react with isocyanides 2 to give isocyanates 3, isothiocyanates 6, and especially 2,5-diaryl-3,4-diarylimino-1,2,5-thiadiazolidin-S-oxides 7.This new heterocyclic ring system 7 can also be sythesized in high yields by a cyclization reaction tetraarylated oxalic amidines 9 with thionyl chloride.The acid catalyzed hydrolysis of the heterocyclic compounds 7 leads to oxalic anilides 8, the hydrolysis with alkali forms amidines 9.The amidine 9a reacts with N-sulfinyl-p-toluenesulfonamide 11 to give an open chained adduct 12.