| 发明名称 |
Sulphonamidosalicylaldehydes |
| 摘要 |
4-Sulphonamidosalicylaldehydes of the formula <IMAGE> wherein R represents an optionally substituted straight-chain or branched alkyl or cycloalkyl group or an optionally substituted aryl group, are valuable intermediates for the preparation of optical brighteners.
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| 申请公布号 |
US4080379(A) |
申请公布日期 |
1978.03.21 |
| 申请号 |
US19760698926 |
申请日期 |
1976.06.23 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
SENG, FLORIN;SCHELLHAMMER, CARL WOLFGANG |
| 分类号 |
C07C311/08;C07C67/00;C07C301/00;C07C303/40;C07C311/00;C07C311/17;C07C311/21;C07D251/10;(IPC1-7):C07C143/75;C07C143/77;C07C143/79 |
主分类号 |
C07C311/08 |
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