In alkali catalytic condition, PBTCA (2-phosphono-1,2,4-tricarboxylic acid butane) is prepared from dialkyl-phosphite ester, maleic acid dialkylester and alkylacrylic easter by one-step successive reaction, its yield is 87.7%.
英
美
- 以二烷基亞磷酸酯、順丁烯二酸二烷酯；以及丙烯酸烷酯等為原料；在強堿性催化條件下；經(jīng) 一步連續反應合成PBTCA(2|膦酸基|1；2；4三羧酸丁烷)；產(chǎn)率為87.；7%25；
