S-Acylation of dithiophosphoric acids yields mixed
anhydrides 3; they readily isomerize to O-thioacyl 4 and
S-thioacyl monothiophosphates 5, which treated with the excess of
dithiophosphoric acid 2 can be easily converted into thioacyl
dithiophosphates 6, excellent thioacylating reagents.
二硫代磷酸的S-酰基化反应生成混合酸酐3;它们容易异构化为O-
硫代酰基4和S-
硫代酰基单
硫代磷酸酯5,这些化合物与过量的
二硫代磷酸2反应后可以轻松转化为
硫代酰基
二硫代磷酸酯6,这是一种出色的
硫代酰化试剂。