HYDROLYSIS AND HYDRAZINOLYSIS OF ESTERS OF N,N-DIMETHYLDITHIOCARBAMIC ACID: A METHOD FOR THE PREPARATION OF MERCAPTANS
作者:Marshall Kulka
DOI:10.1139/v56-142
日期:1956.8.1
mercaptans from alkyl and aralkyl chlorides. This consists of the condensation of sodium N,N-dimethyl-dithiocarbamate with halides followed by alkaline hydrolysis or hydrazinolysis of the resulting N,N-dimethyldithiocarbamates (IV). In the hydrazinolysis of IV, an insoluble solid by-product was formed which was identified as 3-hydrazino-4-amino-5-mercapto-4,1,2-triazole. Although this method was found to have
已开发出一种由烷基和芳烷基氯化物制备硫醇的方法。这包括 N,N-二甲基二硫代氨基甲酸钠与卤化物缩合,然后碱水解或肼解所得 N,N-二甲基二硫代氨基甲酸酯 (IV)。在IV的肼解过程中,形成了一种不溶性固体副产物,其被鉴定为3-肼基-4-氨基-5-巯基-4,1,2-三唑。虽然发现这种方法具有广泛的范围,但遇到了一些失败。IV 的硝基衍生物对碱或肼敏感,并且在尝试降解时仅产生焦油。发现 β-苯氧乙基 N,N-二甲基二硫代氨基甲酸酯 (IX) 具有不稳定的烷基 - 氧键,因此在碱或肼存在下,仅形成相应的酚类。