申请人:Nippon Soda Company Limited
公开号:US04336196A1
公开(公告)日:1982-06-22
Sodium salts of phenylmalonic acid mono-esters are produced by reacting a phenylacetic acid ester with carbon dioxide in the presence of a sodium substituted compound, which is prepared by substituting a sodium atom for a hydrogen atom of an organic compound selected from a group consisting of acetylene, cumene, triphenylmethane, methyl-methylthiomethyl-sulfoxide and dimethyl-sulfoxide, at a temperature in a range of -20.degree. C. to -40.degree. C.
苯丙酸单酯的钠盐是通过在存在钠取代化合物的情况下,将苯乙酸酯与二氧化碳反应而制得的。所述钠取代化合物是通过将钠原子取代有机化合物中的氢原子而制备的,所述有机化合物选自乙炔、叔丁基苯、三苯甲烷、甲基-甲硫基甲基-亚砜和二甲基亚砜组成的一组,反应温度在-20摄氏度至-40摄氏度范围内。