Synthesis and Reactivity of Diethyl (Methylthio)(trimethylsilyl)methylphosphonate
作者:Marian Mikołajczyk、Piotr Bałczewski
DOI:10.1055/s-1989-27163
日期:——
The title compound is obtained in 80% yield by silylation of the lithium salt of diethyl 1-methylthiomethylphosphonate. Other approaches involving sulfenylation of diethyl 1-trimethylsilylmethylphosphonate or the Arbuzov reaction of triethyl phosphite with bromo(methylthio)(trimethylsilyl)methane are less efficient. Aldehydes react with the lithium salt of diethyl (methylthio)(trimethylsilyl)methylphosphonate to give the corresponding 1-methylthioethenylphosphonates in good yields (60-85%) while the reaction with ketones is more complex and Peterson reaction products are formed in very low yields. Methylation, silylation, sulfenylation, and oxidation of the title compound are also described.
标题化合物通过对二乙基 1-甲基硫甲基膦酸锂盐进行硅化反应获得,产率为80%。其他方法,如对二乙基 1-三甲基硅基甲基膦酸酯进行硫酰化或三乙基膦酸酯与溴(甲基硫)(三甲基硅基)甲烷的阿尔布佐夫反应,效率较低。醛与二乙基(甲基硫)(三甲基硅基)甲基膦酸锂盐反应生成相应的1-甲基硫乙烯膦酸酯,产率较好(60-85%),而与酮反应则更为复杂,皮特森反应的产物产率非常低。文中还描述了标题化合物的甲基化、硅化、硫酰化和氧化反应。