Citation: Xin Ying ZHANG, Xue Sen FAN, Hong Ying NIU, Jian Ji WANG. A Novel Green Preparation of α,α'-Bis (substituted benzylidene)-cycloalkanones Promoted by FeCl₃·6H₂O in Ionic Liquid[J]. Chinese Chemical Letters, ;2003, 14(10): 1005-1007. shu

A Novel Green Preparation of α,α'-Bis (substituted benzylidene)-cycloalkanones Promoted by FeCl₃·6H₂O in Ionic Liquid

School of Chemical and Environmental Sciences, Henan Normal University, Key Laboratory ofEnvironmental Science and Engineering of Henan Education Department, Xinxiang 453002

Received Date: 16 October 2003

Fund Project: This work was financially supported by the National Natural Science Foundation of China under grant No.20273109.

α, α'-Bis(substituted benzylidene)cycloalkanones were efficiently prepared fromcycloalkanones and benzaldehydes in [bmim][BF₄] by using iron(Ⅲ) chloride hexahydrate as acatalyst. It is shown that [bmim][BF₄] and iron(Ⅲ) chloride hexahydrate can be quantitativelyrecovered and be reused effectively for many times. Compared with the known methods, thisnovel process has the advantage of being an environmentally benign process together with goodyields and mild reaction conditions.
- Ionic liquid,
- α,α'-bis(substituted benzylidene)cycloalkanones,
- iron(Ⅲ) chloride hexahydrate
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