发明名称 |
METHOD OF PRODUCTION AND METHOD OF SEPARATION OF 2,4'-DIPYRIDYL DERIVATIVES AND METHODS OF PRODUCTION OF BENZOXAZEPINE DERIVATIVES AND SALTS THEREOF |
摘要 |
A method of production of 2,4'-dipyridyl derivatives by a cross coupling reaction of a 2-halopyridine derivative and a 4-halopyridine using a nickel complex catalyst and a method of separation of a 2,4'-dipyridyl derivative from a mixture of dipyridyl isomers containing a 2,2'-dipyridyl derivative, 2,4'-dipyridyl derivative, and 4,4'-dipyridyl by using a dilute aqueous copper sulfate solution to insolubilize and remove the 2,2'-dipyridyl derivative and 4,4'-dipyridyl is disclosed.
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申请公布号 |
WO9852922(A1) |
申请公布日期 |
1998.11.26 |
申请号 |
WO1998JP02264 |
申请日期 |
1998.05.22 |
申请人 |
SUNTORY LIMITED;TATSUOKA, TOSHIO;KAMEI, KATSUHIDE |
发明人 |
TATSUOKA, TOSHIO;KAMEI, KATSUHIDE |
分类号 |
C07D213/22;C07D413/14;(IPC1-7):C07D213/127 |
主分类号 |
C07D213/22 |
代理机构 |
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地址 |
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