A series of pyrrolidine derivatives with beta-amino alcohol moieties prepared from (S)-proline were found to catalyze the enantioselective addition of diethylzinc to aldehydes to yield optically active secondary alcohols with high enantioselectivities. A mechanism accounting for the configurational change with the bulkiness of chiral ligands is proposed. (C) 1999 Elsevier Science Ltd. All rights reserved.
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SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
Gou, Shaohua
Ye, Zhongbin
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SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
Ye, Zhongbin
Feng, Mingming
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SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
Feng, Mingming
Jiang, Wenchao
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SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
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Univ Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, Brazil
Bach, Mariana Ferrari
Griebeler, Cassiana Herzer
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Univ Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, Brazil
Griebeler, Cassiana Herzer
Jacoby, Caroline Gross
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Univ Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, Brazil
Jacoby, Caroline Gross
Schneider, Paulo Henrique
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Univ Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Quim, POB 15003, BR-91501970 Porto Alegre, RS, Brazil