作者:Kawatani, Ryo、Aoki, Yoshino、Tezuka, Souichi、Kimura, Yoshikazu、Kohsaka, Yasuhiro
DOI:10.1016/j.tet.2024.134071
日期:——
Itaconyl dichloride (IC) was prepared using an industrially viable method to guarantee sufficiently high purity for polycondensation. Itaconic acid, a bio-based dicarboxylic acid with an acrylic skeleton, generates anhydride during chlorination by common reagents such as thionyl chloride and oxalyl chloride, resulting in poor yields and purity. In contrast, the combination of dichloromethyl alkyl ether
衣康酰二氯 (IC) 采用工业上可行的方法制备,以保证缩聚所需的足够高的纯度。衣康酸是一种具有丙烯酸骨架的生物基二羧酸,在亚硫酰氯和草酰氯等常用试剂氯化过程中会生成酸酐,导致产率和纯度较差。相比之下,二氯甲基烷基醚和路易斯酸催化剂的组合是有效的,因为它将酸酐中间体转化为IC。虽然IC和脂肪族二醇的熔融聚合导致转化率较低,但与双酚Z的界面聚合提供了相应的含有衣康骨架的半芳香族聚酯。