An effective synthesis of N-substituted 2-sulfenamoylbenzoates and 1,2-benzisothiazolin-3-ones that uses 1,2-benzisothiazolin-3-one as a leaving group
作者:Masao Shimizu、Yoshinori Sugano、Takeo Konakahara、Yasuo Gama、Isao Shibuya
DOI:10.1016/s0040-4020(02)00329-0
日期:2002.5
N-Substituted 2-sulfenamoylbenzoates and 1,2-benzisothiazolin-3-ones were effectively synthesized by the substitution reaction between S-[2-(3-oxo-1,2-benzisothiazolinyl)]-2-mercaptobenzoates (2) and primary amines. The substitution reaction occurred on the sulfur atom of the 2-sulfenamoyl group of 2, and 1,2-benzisothiazolin-3-one behaved as a leaving group. The eliminated 1,2-benzisothiazolin-3-one
通过S- [2-(3-氧代-1,2-苯并噻唑啉基)]-2-巯基苯甲酸酯(2)与伯-取代基之间的取代反应,可以有效地合成N-取代的2-磺酰胺基苯甲酸酯和1,2-苯并噻唑啉-3-胺类。发生在2- sulfenamoyl组的硫原子的取代反应2,和1,2-苯并异噻唑-3-酮表现为一个离去基团。消除的1,2-苯并噻唑啉-3-酮可作为合成2的原料重新使用。N,N-二取代的2-磺酰胺基苯甲酸酯是通过2与仲胺反应制备的。