PHOTOCYCLOADDITION OF ARYLCARBOTHIOAMIDES WITH UNSATURATED SYSTEMS. SYNTHESIS OF 3,5-DIARYL-1,2,4-THIADIAZOLES AND 3-ARYL-4,4,5,5-TETRAMETHYLISOTHIAZOLINES VIA PHOTOGENERATED NITRILE SULFIDES

Article abstract of DOI:10.1016/S0040-4039(00)99897-6

On irradiation arylcarbothioamides (1) undergo, in the absence of oxygen, the Paterno-Buechi reaction with olefins followed by cleavage, whereas under aerobic conditions the photoreaction proceeds to give 4 and 5 probably via nitrile sulfide intermediates