Process for the preparation of dialkyl vinylphosphonates
摘要
A process for the production of dialkyl esters of vinyl phosphonic acid which comprises subjecting dialkyl esters of 2-acetoxyethane phosphonic acid to cleavage by contacting with a liquid catalytically acting medium at a temperature in the range from 150 DEG to 270 DEG C. and under a pressure such that the partial pressures of the total of the components of the reaction system is in the range from 1 to 500 mbar, and drawing off the resulting dialkyl esters of vinyl phosphonic acid and other volatile reaction products.
申请公布号
US4894470(A)
申请公布日期
1990.01.16
申请号
US19880163797
申请日期
1988.03.03
申请人
HOECHST AKTIENGESELLSCHAFT
发明人
ROSCHER, GUENTER;KLEINER, HANS-JERG;IHL, GABRIELE;LEIPE, HERMANN