碱性配体对氯铝酞菁催化CO_2 与环氧烷烃合成烷撑碳酸酯的促进作用  

PROMOTING EFFECT OF LEWIS BASES ON THE REACTION OF CO_2 AND EPOXIDES CATALYZED BY PHTHALOCYANINATOALUMINIUM CHLORIDE

作　　者：季东锋[1] 吕小兵 何仁 黄先宁[2] 赵维绳 

机构地区：[1]大连理工大学碳资源综合利用开放实验室,大连116012 [2]化工部沈阳化工研究院国家染料工程研究中心,沈阳110021

出　　处：《催化学报》1999年第6期675-678,共4页

摘　　要：Cycloaddition of carbon dioxide to epoxides was catalyzed by the binary catalyst systems of phthalocyaninatoaluminium chloride (PcAlCl) and Lewis bases (such as tributylamine, 1 methylimidazole, triphenylphosphine, triethylamine, pyridine and quinoline). The Lewis bases were the excellent promoters, but either component of the binary catalyst systems had low catalytic activity individually. For example, when 0 18 mol of propylene oxide was reacted with 0 36 mol of CO 2 at 140 ℃ for 1 7 h in the presence of 0 18 mmol of PcAlCl and 0 81 mmol of tributylamine, the yield of propylene carbonate was 99 7%; while the yield was 17 4% when used PcAlCl only. Promoting effects of Lewis bases were in the order: 1 methylimidazole>triphenylphosphine>tributylamine>triethylaminepyridinequinoline. Reactivity of the epoxides used was in the order: CH 2Cl>H, CH 3.Cycloaddition of carbon dioxide to epoxides was catalyzed by the binary catalyst systems of phthalocyaninatoaluminium chloride (PcAlCl) and Lewis bases (such as tributylamine, 1 methylimidazole, triphenylphosphine, triethylamine, pyridine and quinoline). The Lewis bases were the excellent promoters, but either component of the binary catalyst systems had low catalytic activity individually. For example, when 0 18 mol of propylene oxide was reacted with 0 36 mol of CO 2 at 140 ℃ for 1 7 h in the presence of 0 18 mmol of PcAlCl and 0 81 mmol of tributylamine, the yield of propylene carbonate was 99 7%; while the yield was 17 4% when used PcAlCl only. Promoting effects of Lewis bases were in the order: 1 methylimidazole>triphenylphosphine>tributylamine>triethylaminepyridinequinoline. Reactivity of the epoxides used was in the order: CH 2Cl>H, CH 3.

关 键 词：氯铝酞菁 二氧化碳 环氧烷烃 烷撑碳酸酯 

分 类 号：O643.36[理学—物理化学] O623.624.4[理学—化学]