Straightforward preparation of highly enantioselective anchored chiral homogeneous catalysts

被引：11

作者：

Barnard, CFJ ^{[1
]}

Rouzaud, J ^{[1
]}

Stevenson, SH ^{[1
]}

机构：

[1] Johnson Matthey Technol Ctr, Reading RG4 9NH, Berks, England

来源：

ORGANIC PROCESS RESEARCH & DEVELOPMENT | 2005年 / 9卷 / 02期

关键词：

D O I：

10.1021/op049785+

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new method of anchoring homogeneous catalysts onto basic carbons is presented. The ease of the preparation is particularly remarkable, and the method proved to be suitable for scale-up. In the case of asymmetric heterogeneous catalysts for hydrogenation reactions, enantioselective improvement was observed in all cases where a comparison was made with the homogeneous species. Cationic rhodium catalysts are more suitable for this technology, but loading of other types of catalysts based on a variety of metals is also possible.

引用

页码：164 / 167

页数：4

共 18 条

[1] A new technique for anchoring homogeneous catalysts [J].

Augustine, R ;

Tanielyan, S ;

Anderson, S ;

Yang, H .

CHEMICAL COMMUNICATIONS, 1999, (13) :1257-1258

[2] Anchored homogeneous catalysts: high turnover number applications [J].

Augustine, RL ;

Goel, P ;

Mahata, N ;

Reyes, C ;

Tanielyan, SK .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2004, 216 (02) :189-197

[3] Anchored homogeneous catalysts: the role of the heteropoly acid anchoring agent [J].

Augustine, RL ;

Tanielyan, SK ;

Mahata, N ;

Gao, Y ;

Zsigmond, A ;

Yang, H .

APPLIED CATALYSIS A-GENERAL, 2003, 256 (1-2) :69-76

[4]

AUGUSTINE RL, 2000, CHEM IND, V82, P497

[5] Preparation, characterization, and performance of tripodal polyphosphine rhodium catalysts immobilized on silica via hydrogen bonding [J].

Bianchini, C ;

Burnaby, DG ;

Evans, J ;

Frediani, P ;

Meli, A ;

Oberhauser, W ;

Psaro, R ;

Sordelli, L ;

Vizza, F .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (25) :5961-5971

[6]

BRUNNER H, 1996, APPL HOMOGENEOUS CAT, V1, P206

[7] Noncovalent anchoring of homogeneous catalysts to silica supports with well-defined binding sites [J].

Chen, R ;

Bronger, RPJ ;

Kamer, PCJ ;

van Leeuwen, PWNM ;

Reek, JNH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (44) :14557-14566

[8] Homogeneous catalysis - new approaches to catalyst separation, recovery, and recycling [J].

Cole-Hamilton, DJ .

SCIENCE, 2003, 299 (5613) :1702-1706

[9] Non-covalent immobilization of homogeneous cationic chiral rhodium-phosphine catalysts on silica surfaces [J].

de Rege, FM ;

Morita, DK ;

Ott, KC ;

Tumas, W ;

Broene, RD .

CHEMICAL COMMUNICATIONS, 2000, (18) :1797-1798

[10]

GOEL P, 2002, CHEM IND, V89, P523

← 1 2 →