发明名称 |
3-substituted pyridine compounds and related synthesis |
摘要 |
The present invention relates to 3-substituted and 2,3-disubstituted pyridine compounds which are useful as intermediates in the synthesis of pyridylsulfonylurea herbicides. The invention also relates to arylation of alcohols using a pyridinediazonium salt. More particularly the arylation process of the instant invention relates to the synthesis of 2,3-disubstituted pyridine compounds via anhydrous diazotization of 3-aminopyridines to form a diazonium salt intermediate that is then reacted with the appropriate alcohol to produce the desired product. The invention additionally relates to pyridine-3-diazonium salt intermediates.
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申请公布号 |
US6509471(B2) |
申请公布日期 |
2003.01.21 |
申请号 |
US20010767269 |
申请日期 |
2001.01.22 |
申请人 |
SYNGENTA PARTICIPATIONS AG |
发明人 |
HOGLEN DEAN KENT |
分类号 |
C07D213/63;C07D213/77;(IPC1-7):C07D213/65;C07D213/70 |
主分类号 |
C07D213/63 |
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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