发明名称 |
Chiral catalyst, process for preparing the same and its use in the oxidate coupling of naphthols |
摘要 |
The compound of this invention is a useful catalyst for the oxidative coupling of naphthol. Its originality lies in that it is a novel vanadium complex of Schiff's base formed by a chiral amino acid and a formyl biphenol or its derivative. Its axis chirality is induced to form by the chiral amino acid. It has the general formula: where R represents a benzyl, an isopropyl, an isobutyl or a tertiary butyl and the configuration of the amino acid is R or S. The compound can catalyze oxidative coupling of naphthol or its derivative to form binaphthol or its derivatives with a high optical purity.
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申请公布号 |
US2005256345(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
US20040518118 |
申请日期 |
2004.12.15 |
申请人 |
CHENGDU INSTITUTE OF ORGANIC CHEMISTRY CHINESE ACADEMY OF SCIENCES |
发明人 |
GONG LIUZHU;LUO ZHIBIN;LIU QUANZHONG;MI AIQIAO;JIANG YAOZHONG |
分类号 |
B01J31/18;B01J31/22;B01J31/36;C07F9/00;(IPC1-7):C07C39/14 |
主分类号 |
B01J31/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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