发明名称 |
PREPARATION OF alpha -TOCOPHEROL |
摘要 |
Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non- alpha -tocopherols comprising beta -, gamma -, and delta -tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase. |
申请公布号 |
WO9707113(A1) |
申请公布日期 |
1997.02.27 |
申请号 |
WO1996US13343 |
申请日期 |
1996.08.14 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
KUO, YEONG-JEN;HARTLEY, GARY, WAYNE;GUSTAFSON, BRUCE, LEROY;ALLEN, DAVID, JOHN |
分类号 |
B01J21/04;B01J23/44;C07B61/00;C07D311/72 |
主分类号 |
B01J21/04 |
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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