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Communication | Regular issue | Vol 29, No. 5, 1989, pp.841-845
Published online, 1st January, 1970
DOI: 10.3987/COM-89-4867
Formation of Thiocyanates by Ring Cleavage from 2-Imino-5,6-dihydro-4H-1,3-thiazine

Mitsuhiro Ichinari and Yoshio Hayase

*Aburahi Laboratories, Shionogi & Co. Ltd., Gotanda, Koka-cho, Koka-gun, Shiga 520-3423, Japan


The reaction of 2-imino-5,6-dihydro-4H-1,3-thiazine with diethyl chlorophosphate, diethyl chlorothiophosphate and p-toluenesulfonyl chloride in the presence of base gave N-propylthiocyanate derivatives of diethyl phosphoramide, diethyl phosphorothioamide and p-toluenesulfonamide, respectively, in goad yield.