A Facile General Synthesis of Thiocarboxylate<i>S</i>-Esters of Glyphosate and Its Derivatives
作者:Michael K. Mao、John E. Franz
DOI:10.1055/s-1991-26606
日期:——
Various glyphosate thiocarboxylate S-ester derivatives, e.g. S-alkyl 2-(phosphonomethylamino)ethanethioates and S-alkyl 2-[(phenoxyphosphorylmethyl)amino]ethanethioates, are readily synthesized from N-benzyloxycarbonylglycine using N-methylene-tert-butylamine as the methylene transfer reagent followed by nucleophilic phosphorylation with tris(trimethylsilyl) phosphite.
各种草甘膦硫羧酸酯S-酯衍生物,例如S-烷基2-(膦甲基氨基)乙硫酸盐和S-烷基2-[(苯氧膦酰基甲基)氨基]乙硫酸盐,可以通过使用N-亚苄氧羧基甘氨酸和N-亚甲基-叔丁胺作为亚甲基转移试剂,然后通过与三(三甲基硅基)磷酸酯进行亲核磷酸化反应,容易合成。