发明名称 |
IMPROVED PROCESS FOR THE MANUFACTURE OF 5-(ALKOXYMETHYL)PYRIDINE-2,3-DICARBOXYLATE SALT |
摘要 |
There is provided an improved method for the conversion of 5,6-dicarboxyl-3-pyridylmethyl ammonium halide to 5-(alkoxymethyl)pyridine-2,3-dicarboxylate salt via a single step closed reaction with the appropriate alcohol and a base at a temperature of about 120.degree.-180.degree.C. The product pyridinedicarboxylate salt is an important intermediate in the manufacture of pyridine imidazolinone herbicidal agents.
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申请公布号 |
CA2178062(C) |
申请公布日期 |
2008.12.30 |
申请号 |
CA19962178062 |
申请日期 |
1996.06.03 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
WU, WEN-XUE |
分类号 |
C07D213/803;C07D213/79;C07D213/84;C07D401/04;C07D401/06 |
主分类号 |
C07D213/803 |
代理机构 |
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地址 |
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