Novel<i>N</i>-(Alkylthiomethyl)iminophosphoranes and Their Application to the Syntheses of New Functionalized<i>N,S</i>-Acetals
作者:Alan R. Katritzky、Jinlong Jiang、John V. Greenhill
DOI:10.1055/s-1994-25415
日期:——
Reaction of thiolates with (1-triphenylphosphorylideneaminomethyl)benzotriazole (betmip, 1) gave novel N-(alkylthiomethyl)-iminophosphoranes 3 which were transformed, without isolation and in high yields, to N-(alkylthiomethyl)benzalimines 4, N-(alkyl)-N′-(alkylthiomethyl)carbodiimides 5 and N-(alkylthiomethyl)-amides 7 by treatment with araldehydes, tert-butyl isocyanate or acyl chlorides, respectively. N-(Alkylthiomethyl)- N′-tert-butylcarbodiimides 5 provide N-(alkyl)-N′-(alkylthiomethyl) ureas 6 in good yield.
硫酸盐与(1-三苯基膦亚氨基甲基)苯并三唑(betmip, 1)反应生成新型 N-(烷硫基甲基)亚氨基膦 3,这些膦未经分离就以高产率转化为 N-(烷硫基甲基)苯并咪唑 4、N-(烷基)-N′-(烷硫基甲基)碳二亚胺 5 和 N-(烷硫基甲基)碳二亚胺、经醛、异氰酸叔丁酯或酰基氯处理后,分别转化为 N-(烷硫基甲基)苯甲亚胺 4、N-(烷基)-N′-(烷硫基甲基)碳二亚胺 5 和 N-(烷硫基甲基)-酰胺 7。N-(烷硫基甲基)-N′-叔丁基碳二亚胺 5 可以提供 N-(烷基)-N′-(烷硫基甲基)脲 6,收率很高。