| 发明名称 |
Process for the preparation of substituted pyridines |
| 摘要 |
A process is described for the preparation of compounds of the formula <IMAGE> (1) in which R and X are as defined in claim 1. The compounds of the formula (1) are valuable intermediates in the synthesis of triarylmethane dyes and triarylmethanelactones.
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| 申请公布号 |
US4897484(A) |
申请公布日期 |
1990.01.30 |
| 申请号 |
US19870130486 |
申请日期 |
1987.12.09 |
| 申请人 |
CIBA-GEIGY CORPORATION |
发明人 |
WEIS, CLAUS D.;SUTTER, PETER |
| 分类号 |
C07D211/88;C07D213/61;C07D409/06 |
主分类号 |
C07D211/88 |
| 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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