A process the preparation of a dithiocarboxylic esters comprises reacting a carboxylic acid compound of formula R
1
(COOH)
m
, a compound of formula R
2
AH and phosphorus pentasulfide to produce a compound of structure I. An alternate process comprises reacting a
1
compound of formula R
3
(COAH)
m
and a compound of structure II
2
in the presence of a clay catalyst; and treating products of the reaction with a thiating agent to produce a compound of structure III, a compound of structure IV, or a combination of compounds of structure III and structure IV.
3
一种制备二
硫代
羧酸酯的过程包括将具有公式R1(COOH)m的
羧酸化合物、具有公式R2AH的化合物和五
硫化
磷反应以产生结构I的化合物。另一种方法包括在存在粘土催化剂的情况下,将具有公式R3(COAH)m的化合物和结构II2的化合物反应;并用
硫化剂处理反应产物以产生结构III的化合物、结构IV的化合物,或结构III和结构IV的组合物。