Optically active aldiminato cobalt(II) complexes as efficient catalysts for enantioselective cyclopropanation of styrenes with diazoacetates

被引：45

作者：

Yamada, T ^{[1
]}

Ikeno, T ^{[1
]}

Sekino, H ^{[1
]}

Sato, M ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

CHEMISTRY LETTERS | 1999年 / 08期

关键词：

D O I：

10.1246/cl.1999.719

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The optically active cobalt(II) complex, MPAC, has proved to be efficient enantioselective catalyst for the cyclopropanation of styrenes with diazoacetates. The addition of a catalytic amount of N-methylimidazole remarkably accelerated the cyclopropanation reaction to improve, both the chemical and optical yields of the product.

引用

页码：719 / 720

页数：2

共 22 条

[1] CATALYTIC ASYMMETRIC-SYNTHESIS OF CYCLOPROPANE-CARBOXYLIC ACIDS - AN APPLICATION OF CHIRAL COPPER CARBENOID REACTION [J].

ARATANI, T .

PURE AND APPLIED CHEMISTRY, 1985, 57 (12) :1839-1844

[2]

ARATANI T, 1975, TETRAHEDRON LETT, P1707

[3] ASYMMETRIC-SYNTHESIS OF PERMETHRIC ACID - STEREOCHEMISTRY OF CHIRAL COPPER CARBENOID REACTION [J].

ARATANI, T ;

YONEYOSHI, Y ;

NAGASE, T .

TETRAHEDRON LETTERS, 1982, 23 (06) :685-688

[4]

ARATANI T, 1977, TETRAHEDRON LETT, P2599

[5] CHIRAL RHODIUM(II) CARBOXAMIDES - A NEW CLASS OF CATALYSTS FOR ENANTIOSELECTIVE CYCLOPROPANATION REACTIONS [J].

DOYLE, MP ;

BRANDES, BD ;

KAZALA, AP ;

PIETERS, RJ ;

JARSTFER, MB ;

WATKINS, LM ;

EAGLE, CT .

TETRAHEDRON LETTERS, 1990, 31 (46) :6613-6616

[6] BIS(OXAZOLINES) AS CHIRAL LIGANDS IN METAL-CATALYZED ASYMMETRIC REACTIONS - CATALYTIC, ASYMMETRIC CYCLOPROPANATION OF OLEFINS [J].

EVANS, DA ;

WOERPEL, KA ;

HINMAN, MM ;

FAUL, MM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (02) :726-728

[7] CHIRAL COPPER SEMICORRIN COMPLEXES AS ENANTIOSELECTIVE CATALYSTS FOR THE CYCLOPROPANATION OF OLEFINS BY DIAZO-COMPOUNDS [J].

FRITSCHI, H ;

LEUTENEGGER, U ;

PFALTZ, A .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1986, 25 (11) :1005-1006

[8]

FUKUDA T, 1995, SYNLETT, P825

[9]

IRIE R, 1991, SYNLETT, P265

[10] CATALYTIC ASYMMETRIC CYCLOPROPANATION USING COPPER COMPLEX OF OPTICALLY-ACTIVE BIPYRIDINE AS A CATALYST [J].

ITO, K ;

KATSUKI, T .

TETRAHEDRON LETTERS, 1993, 34 (16) :2661-2664

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