Tetrahedron letters

4-Chloro-5H-1, 2, 3-dithiazol-5-one: a good α-thiocyanating agent for α, β-unsaturated β-amino esters

YS Park, K Kim

Index: Park, Young Seok; Kim, Kyongtae Tetrahedron Letters, 1999 , vol. 40, # 35 p. 6439 - 6442

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Citation Number: 14

Abstract

Treatment of 4-chloro-5H-1, 2, 3-dithiazol-5-one with 3-alkyl (or aryl)-3-amino-2-propenoate esters in DMSO at 120° C gave the corresponding 2-thiocyanated esters 4 (major) and 5- alkoxycarbonyl-4-alkyl (or aryl)-4-thiazolin-2-ones 5 (minor), whereas the esters bearing a

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