Co(Ⅲ)(Salen)-(catalyzed asymmetric ring-opening of  racemic epoxides

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Chin. J. Org. Chem. ›› 2001, Vol. 21 ›› Issue (2): 150-154. Previous Articles Next Articles

Co(Ⅲ)(Salen)催化的外消旋环氧化合物不对称开环

张雅文;金筱青;李明;沈宗旋

苏州大学化学化工系

发布日期:2001-02-25

Co(Ⅲ)(Salen)-(catalyzed asymmetric ring-opening of racemic epoxides

Zhang Yawen;Jin Xiaoqing;Li Ming;Shen Zongxuan

Published:2001-02-25

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Abstract

Condensation of (R, R)-DPEDA with 3-tert-butyl-2- hydroxy-5- methylbenzaldehyde gave the chiral Salen (R, R)- 13, which reacted with cobalt acetate and then oxidized to give the Co(Ⅲ)(Salen) complex (R,R)-2, which catalyzes the asymmetric ring-opening of racemic epoxides to afford chiral diols and epoxides with the ee up to 99% and 92%, respectively.

Key words: MESOTOMY, EPOXIDE, ASYMMETRY, OPEN CYCLE, HYDROLYSIS

CLC Number:

O627

Cite this article

Zhang Yawen;Jin Xiaoqing;Li Ming;Shen Zongxuan. Co(Ⅲ)(Salen)-(catalyzed asymmetric ring-opening of racemic epoxides[J]. Chin. J. Org. Chem., 2001, 21(2): 150-154.

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Co(Ⅲ)(Salen)催化的外消旋环氧化合物不对称开环

Co(Ⅲ)(Salen)-(catalyzed asymmetric ring-opening of racemic epoxides

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