| 发明名称 |
NOVEL PRIMARY INTERMEDIATE IN OXIDATIVE HAIR DYEING |
| 摘要 |
5-Nitroisatin is reacted with sodium hydroxide to produce an .alpha.-keto acid sodium salt that is reduced with borane-tetrahydrofuran complex and then hydrogenated to produce 1-(2,5-diaminophenyl)ethylene glycol, a novel compound useful as a primary intermediate in the production of oxidative hair dyes.
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| 申请公布号 |
CA2287821(A1) |
申请公布日期 |
2000.05.03 |
| 申请号 |
CA19992287821 |
申请日期 |
1999.10.22 |
| 申请人 |
BRISTOL-MYERS SQUIBB COMPANY |
发明人 |
WONG, MICHAEL Y.M.;PAN, YUH-GUO;LIM, MU-ILL;STASAITIS, LINAS R. |
| 分类号 |
A61K8/00;A61K8/41;A61Q5/10;C07C213/02;C07C215/68;(IPC1-7):C07C215/80;A61K7/13 |
主分类号 |
A61K8/00 |
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