Oxocarbons and Related Compounds; Part 16. Synthesis of 3-Alkylthio- and 3-Arylthio-3-cyclobutene-1,2-diones (S-Alkyl and S-Aryl Thiosemisquarates)

Article abstract of DOI:10.1055/s-1990-27025

The reaction of semisquaric chloride (1) with thiols 2 (X = H) has been investigated.In the presence of triethylamine (Method A) only moderate yields of S-alkyl thiosemisquarates 3a-d were obtained.Moderate to good yields of S-alkyl and S-aryl thiosemisqu