STUDY OF DIRECTION OF CYCLIZATION OF MALONODITHIOAMIDES AS A METHOD OF INVESTIGATION OF REACTIVITY OF α-DIAZOTHIOACETAMIDES
The reaction of malonothioamides with benzene-sulfonyl azide and 2-azido-3-ethylbenzthiazolium tatrafluoroborate gave amides of 2-diazothiomalonic acid, which underwent cyclization to a mixture of 5-N-R-amino-1,2,3-thiadiazole-4-carbothioamides and 5-amin