二(2-羟基)乙基四硫的合成研究

Study on the synthesis of bis-(2-hydroxyl) ethyl tetrasulfide

以一氯化硫和2 巯基乙醇为原料,石油醚作溶剂,在0℃下4h内经缩合合成了二(2 羟基)乙基四硫,选取最佳条件n(2 巯基乙醇)∶n(一氯化硫)=3,产率达到91.7%,产品纯度为91.1%.通过液相色谱、核磁共振谱和红外光谱等确定产品结构为二(2 羟基)乙基四硫。

Bis-(2-hydroxyl) ethyl tetrasulfide was prepared by reacting sulfur monochloride with 2-mercaptoethanol in petroleum ether at 0℃.The reaction time was 4h.The optimum molar ratio of 2-mercapto ethanol to sulfur monochloride was 3.The yield was summed up to 91.7%,The structure of the product was confirmed by LC,IR,~1HNMR.