CAJ | 학술논문

以丙二酸二乙酯和氯代苯甲酰氯为原料,经烷基化、酯还原和酰化反应合成了四个新型的Z-N型催化剂--2,2-二异丁基-1,3-丙二醇二苯甲酸酯衍生物(4a～4d),总收率73%～80%,其结构经~1H NMR表征.以合成聚丙烯为探针反应,考察4a～4d的催化活性.结果表明,4a～4d具有较好的催化活性,在苯环上引入氯可以显著提高催化剂的催化活性而不影响其他性能,且当氯处于羧基间位时,催化活性最佳.
이병이산이을지화록대분갑선록위원료,경완기화、지환원화선화반응합성료사개신형적Z-N형최화제--2,2-이이정기-1,3-병이순이분갑산지연생물(4a～4d),총수솔73%～80%,기결구경~1H NMR표정.이합성취병희위탐침반응,고찰4a～4d적최화활성.결과표명,4a～4d구유교호적최화활성,재분배상인입록가이현저제고최화제적최화활성이불영향기타성능,차당록처우최기간위시,최화활성최가.
Four novel Z-N type catalysts, 2,2-diisobutyl-1,3-propylene glycol dichloro-benzoates(4a～4d) were synthesized from diethyl malonate and chloro-benzoyl chloride by the reaction of alkylation, ester reduction and acylation in total yields of 73%～80%. The structures were characterized by ~1H NMR. Catalytic activities of 4a～4d were investigated by polymerization of propylene. The results showed that 4a～4d exhibited good catalytic activities. The catalytic activities were increased by introducing chloro group on benzene ring and were highest when chloro located on the meta position of carboxylic group.