Asymmetric Epoxidation of Styrene Analogues Catalyzed by Cam-phyl (β-Diketone)-iron Complexes

Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (18): 1916-1920. Previous Articles Next Articles

Original Articles

龙脑基β-二酮铁配合物催化的苯乙烯类化合物的不对称环氧化反应

程青芳*^,1,2, 许兴友¹,2, 李树安¹, 沙鸥¹, 杨绪杰², 尤田耙³

(¹淮海工学院化工系连云港 222005)
(²南京理工大学材料化学实验室南京 210094)
(³中国科学技术大学化学系合肥 230026)

投稿日期:2005-11-10 修回日期:2006-04-05 发布日期:2006-09-28
通讯作者: 程青芳

Asymmetric Epoxidation of Styrene Analogues Catalyzed by Cam-phyl (β-Diketone)-iron Complexes

CHENG Qing-Fang*^,1,2; XU Xing-You¹,2; LI Shu-An¹; SHA Ou¹; YANG Xu-Jie²; YOU Tian-Pa³

(¹Department of Chemical Technology, Huaihai Institute of Technology, Lianyungang 222005)
(²Materials Chemistry Laboratory, Nanjing University of Science and Technol-ogy, Nanjing 210094)
(³Department of Chemistry, University of Science and Tech-nology of China, Hefei 230026)

Received:2005-11-10 Revised:2006-04-05 Published:2006-09-28
Contact: CHENG Qing-Fang

Abstract

Four camphyl β-diketone iron(III) complexes were synthesized and used in the asymmetric ep-oxidation of styrene analogues affording the corresponding epoxides in good chemical yields and enantioselectivities in the range of 47.5%～91.6% ee with combined use of molecular oxygen and 2-ethylbutyralde- hyde as sacrificial aldehyde at 25～30 ℃. Some factors influencing yield and enantioselectivity were discussed.

Key words: asymmetric epoxidation, styrene, camphyl β-diketone, iron(III) complex

Cite this article

CHENG Qing-Fang*^,1,2; XU Xing-You^1,2; LI Shu-An; SHA Ou; YANG Xu-Jie²; YOU Tian-Pa³. Asymmetric Epoxidation of Styrene Analogues Catalyzed by Cam-phyl (β-Diketone)-iron Complexes[J]. Acta Chimica Sinica, 2006, 64(18): 1916-1920.

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龙脑基β-二酮铁配合物催化的苯乙烯类化合物的不对称环氧化反应

Asymmetric Epoxidation of Styrene Analogues Catalyzed by Cam-phyl (β-Diketone)-iron Complexes

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