Study on the Epoxidation of Triphenylmethyl Substituted Olefins

Chin. J. Org. Chem. ›› 2007, Vol. 27 ›› Issue (07): 885-889. Previous Articles Next Articles

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三苯甲基取代烯烃的环氧化研究

王攀登，阳年发*，凌莹，李继超，曹靖

(湘潭大学化学学院湘潭 411105)

收稿日期:2006-11-27 修回日期:1900-01-01 发布日期:2007-06-30
通讯作者: 阳年发*

Study on the Epoxidation of Triphenylmethyl Substituted Olefins

WANG Pan-Deng,YANG Nian-Fa*,LING Ying,LI Ji-Chao,CAO Jing

(College of Chemistry, Xiangtan University, Xiangtan 411105)

Received:2006-11-27 Revised:1900-01-01 Published:2007-06-30
Contact: YANG Nian-Fa*,

Abstract

Six olefins bearing triphenylmethyl group were synthesized. High enantioselectivities (81%) have been obtained for asymmetric epoxidation of the olefins using the (R,R)-Mn(III)salen complex as catalyst and dimethyldioxirane (DMD) as primary oxidant. The epoxides were obtained in good yields and low enantioselectivities by the oxidation of olefins having methylene using the (R,R)-Mn(III)salen complex as catalyst and dimethyldioxirane (DMD) as oxygen donor, the opposite results were obtained by the oxidation of olefins no having methylene by the same way.

Key words: substituted olefin, dimethyldioxirane, asymmetric epoxidation, triphenylmethyl

Cite this article

WANG Pan-Deng,YANG Nian-Fa*,LING Ying,LI Ji-Chao,CAO Jing. Study on the Epoxidation of Triphenylmethyl Substituted Olefins[J]. Chin. J. Org. Chem., 2007, 27(07): 885-889.

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三苯甲基取代烯烃的环氧化研究

Study on the Epoxidation of Triphenylmethyl Substituted Olefins

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