The Reaction between Diphenylalkanes and Maleic Anhydride by the Friedel and Crafts Method
作者:Wataru Koga
DOI:10.1246/bcsj.29.725
日期:1956.6
respectively. And cis and trans isomers of dimethyl esters of these acids were prepared. (2) By the reduction of the above two acids by zinc and acetic acid, diphenyl-methane-4, 4′-di-γ-oxobutyric acid and biben-zyl-4, 4′-di-γ-oxobutyric acid were prepared. (3) These saturated keto acids were reduced by amalgamated zinc in the mixture of ethanol and hydrochloric acid to diphenyl-methane-4,4′-dibutyric acid and
(1) 在氯化铝、diphenyl-methane-4, 4'-di-γ-oxocrotonic acid 和 biben-zyl-4,4'-di-γ-oxocrotonic 存在下,二苯甲烷和二苯乙烷与马来酸酐反应分别产生酸。并制备了这些酸的二甲酯的顺式和反式异构体。(2) 将上述两种酸用锌和乙酸还原,制备二苯基甲烷-4, 4'-二-γ-氧代丁酸和联苯-4, 4'-二-γ-氧代丁酸. (3) 这些饱和酮酸在乙醇和盐酸的混合物中被锌汞齐还原成二苯基甲烷-4,4'-二丁酸和二苯基-乙烷-4,4'-二丁酸。