PROCESS FOR THE PREPARATION OF HYDROXY METHYLTHIOBUTYRIC ACID ESTERS

摘要

A PROCESS FOR PREPARATION OF 2-HYDROXY-4-METHYLTHIOBUTRIC ACID ESTER WHICH COMPRISES (A) A FIRST STEP OF REACTING 2-HYDROXY-4-METHYLTHIOBUTYRONITRILE WITH SULPHURIC ACID TO PRODUCE 2-HYDROXY-4-METHYLTHIOBUTYRAMIDE, AND (B) A SECOND STEP OF REACTING THE 2-HYDROXY-4- METHYLTHIOBUTYRAMIDE WITH AN ALCOHOL TO PRUDUCE A 2- HYDROXY-4- METHYLTHIOBUTRIC ACID ESTER, THE TWO STEPS BEING CARRIED OUT IN THE SAME REACTION MEDIUM.