A Novel Green Preparation of a, a'-Bis (substituted benzylidene)-cycloalkanones Promoted by FeCl_3 6H-2O in Ionic Liquid  被引量:5

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作  者:Xin Ying ZHANG, Xue Sen FAN, Hong Ying NIU, Jian Ji WANGSchool of Chemical and Environmental Sciences, Henan Normal University, Key Laboratory ofEnvironmental Science and Engineering of Henan Education Department,Xinxiang 453002 

出  处:《Chinese Chemical Letters》2003年第10期1005-1007,共3页中国化学快报(英文版)

基  金:supported by the National Natural Science Foundation of China under grant No.20273109.

摘  要:a, a'-Bis(substituted benzylidene)cycloalkanones were efficiently prepared from cycloalkanones and benzaldehydes in [bmim][BF4] by using iron(III) chloride hexahydrate as a catalyst. It is shown that [bmim][BF4] and iron(III) chloride hexahydrate can be quantitatively recovered and be reused effectively for many times. Compared with the known methods, this novel process has the advantage of being an envkonmentally benign process together with good yields and mild reaction conditions.a, a'-Bis(substituted benzylidene)cycloalkanones were efficiently prepared from cycloalkanones and benzaldehydes in [bmim][BF4] by using iron(III) chloride hexahydrate as a catalyst. It is shown that [bmim][BF4] and iron(III) chloride hexahydrate can be quantitatively recovered and be reused effectively for many times. Compared with the known methods, this novel process has the advantage of being an envkonmentally benign process together with good yields and mild reaction conditions.

关 键 词:Ionic liquid a a'-bis(substituted benzylidene)cycloalkanones iron(III) chloride hexahydrate. 

分 类 号:O625[理学—有机化学]

 

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