Montmorillonite Clay Catalysis I: An Efficient and Convenient Procedure for Preparation of 5(6)/5′(6′)-Unsaturated 3β-Disteryl Ethers

Tongshuang Li Department of Chemistry, Hebei University, Baoding, 071002, China

Huizhang Li Department of Chemistry, Hebei University, Baoding, 071002, China

Juanli Guo Department of Chemistry, Hebei University, Baoding, 071002, China

Tongshou Jin Department of Chemistry, Hebei University, Baoding, 071002, China

Abstract

In the presence of montmorillonite K 10, 5(6)-unsaturated sterols (1) were heated at refluxing temperature in dichloromethane to provide 5(6)/5′(6′)-unsaturated 3β,3′β-disteryl ethers (4) in 69–73% yield. The mechanism of the reaction was discussed.

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Montmorillonite Clay Catalysis I: An Efficient and Convenient Procedure for Preparation of 5(6)/5′(6′)-Unsaturated 3β-Disteryl Ethers

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Montmorillonite Clay Catalysis I: An Efficient and Convenient Procedure for Preparation of 5(6)/5′(6′)-Unsaturated 3β-Disteryl Ethers

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