abstract |
The present invention relates to a process for preparing 2-haloacrylic acid esters from 2-hydroxymethyl-, or 2-halomethyl-, or 2-chlorosulfinyloxymethyl-2-halomalonic acid diesters. The present invention further provides novel 2-halomethyl-2-halomalonic acid diesters or 2-chlorosulfinyloxymethyl-2-halomalonic acid diesters, which are used to prepare 2-haloacrylic acid esters. Can do. |