发明名称 |
Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same |
摘要 |
The present invention provides a catalyst which exhibits a high catalytic activity and allows asymmetric reaction in a high asymmetric yield to obtain a reaction product having a high optical purity. The present invention also provides a process for the preparation of an optically active 4-methyl-2-oxetanone having a high optical purity useful as starting material of polymer in a high yield in a short period in the presence of the foregoing catalyst. A novel ruthenium-iodo-optically active phosphine complex is provided, represented by the following general formula (1):Ru-I2-(R1-BINAP)(1)wherein R1-BINAP represents an optically active tertiary phosphine represented by the following general formula (2): wherein R1 represents an aryl group which may have a substituent selected from the group consisting of a C1-4 lower alkyl group, a C1-4 lower alkoxy group, a C1-4 lower alkylamino group, and a halogen atom or a C3-8 cycloalkyl group.
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申请公布号 |
US5981771(A) |
申请公布日期 |
1999.11.09 |
申请号 |
US19980100755 |
申请日期 |
1998.06.22 |
申请人 |
TAKASAGO INTERNATIONAL CORPORATION |
发明人 |
OKEDA, YOSHIKI;HORI, YOJI;HAGIWARA, TOSHIMITSU |
分类号 |
C07D305/12;B01J31/24;C07B53/00;C07B61/00;C07D315/00;C07F15/00;(IPC1-7):C07D305/12 |
主分类号 |
C07D305/12 |
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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