一种聚酯单体和柔性配体合成  

Synthesis of a Polyester Monomer and A Flexible Ligand

作　　者：王崇年 刘长波 Wang Chongnian;Liu Changbo(Research Department of Dalian Tricochemical Co.,Ltd.,Liaoning,116600)

机构地区：[1]大连天源基化学有限公司研发部,辽宁116600

出　　处：《当代化工研究》2021年第13期164-165,共2页Modern Chemical Research

摘　　要：在氮气保护下原料对羟基苯甲酸甲酯、对卤苯甲酸甲酯在催化下偶联合成4,4'-二苯醚二甲酸二甲酯,4,4'-二苯醚二甲酸二甲酯经水解,酸化得到最终产品4,4'-二苯醚二甲酸。利用HPLC检测确定各步反应转化率,考察各种有机配体对偶联反应的影响。结果表明,有机配体与铜盐络合形成的催化剂可有效提高4,4'-二苯醚二甲酸合成总收率至85%以上。Under the protection of nitrogen,the raw materials methyl p-hydroxybenzoate and methyl p-halobenzoate were coupled into dimethyl-4,4′-oxybisbenzoate under the catalysis.The final product 4,4'-diphenyl ether dicarboxylic acid was obtained by hydrolysis and acidification of dimethyl-4,4′-oxybisbenzoate.The conversion rate of each step was determined by HPLC,and the effects of various organic ligands were investigated on the coupling reaction.The results showed that,the total yield of 4,4'-diphenyl ether dicarboxylic acid could be effectively improved more than 85%by the catalyst complexed with organic ligands and copper salts.

关 键 词：4 4'-二苯醚二甲酸二甲酯 催化 配体 合成 

分 类 号：TQ[化学工程]