名称:
ONE STEP SYNTHESIS OF 5,2′-BITHIAZOLE DERIVATIVES: REACTION OFN,N-DIMETHYL-2,4-DITHIOBIURET WITH α-HALOKETONES
摘要:
Thermal reaction of N,N-dimethyl-2,4-dithiobiuret (1a) with monochloroacetone (2a) in aqueous solution gave 4-methyl-2-(N,N-dimethylthiocarbamoyl)aminothiazole (3a) and 5,2′-bithiazole derivative, 4-methyl-2-dimethylamino-5-(4′-methylthiazol-2′-yl)thiazole (4a). Reaction of (1a) and phenacyl bromide (2b) gave 2-dimethylamino-4-phenyl-5-(4′-phenylthiazol-2′-yl)thiazole (4b) alone in one step and in a good yield.