| 发明名称 |
Process for preparing 2-methyl-3-prenyl-4,5,6-trimethoxyphenol |
| 摘要 |
2-METHYL-3-PRENYL-4,5,6-TRIMETHOXYPHENOL OF THE FORMULA: <IMAGE> wherein R represents a group of the formula: <IMAGE> WHEREIN N IS AN INTEGER OF 0 TO 9 AND A and B represent hydrogen atom or A-B may form a bond, IS PREPARED BY REACTING 6-METHYL-2,3,4-TRIMETHOXYPHENOL WITH A PRENOL OR ISOPRENOL SUBSTITUTED BY THE GROUP R as defined above in the presence of a complex catalyst comprising Lewis acid and a silica-alumina compound.
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| 申请公布号 |
US4163864(A) |
申请公布日期 |
1979.08.07 |
| 申请号 |
US19780878470 |
申请日期 |
1978.02.16 |
| 申请人 |
EISAI CO LTD |
发明人 |
EJIRI, HIROSABURO;HAMAMURA, KIMIO;KIJIMA, SHIZUMASA;MORITA, EIICHI;MORITA, YUKIO;TAKAYANAGI, KEIZO;TANAKA, YASUHIDE;YAMATSU, ISAO |
| 分类号 |
A61K31/09;A61P1/16;A61P9/00;A61P9/08;A61P9/10;B01J27/00;C07B61/00;C07C41/00;C07C41/30;C07C43/23;C07C46/06;C07C50/28;C07C67/00;(IPC1-7):07C41/00 |
主分类号 |
A61K31/09 |
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