发明名称 |
Method for producing trimethylcyclohexyl-3-alkanols with a high portion of trans-isomers |
摘要 |
<p>Production of 1-(2,2,6-trimethylcyclohexyl)-3-alkanols containing trans isomers (D) comprises hydrogenating corresponding enones (B) in the presence of a nickel catalyst in the absence of copper chromite. Production of 1-(2,2,6-trimethylcyclohexyl)-3-alkanols containing trans isomers of formula D comprises hydrogenating corresponding enones of formula B in the presence of a nickel catalyst in the absence of copper chromite. R = H or 1-4C alkyl; R1 = 1-4C alkyl. An Independent claim is also included for production of a perfume composition by preparing one or more 1-(2,2,6-trimethylcyclohexyl)-3-alkanols as above, optionally isolating and/or purifying the products and mixing them with conventional perfume ingredients.</p> |
申请公布号 |
EP1400503(B1) |
申请公布日期 |
2007.08.08 |
申请号 |
EP20030019908 |
申请日期 |
2003.09.02 |
申请人 |
SYMRISE GMBH & CO. KG |
发明人 |
SCHATKOWSKI, DIETMAR;PICKENHAGEN, WILHELM;STRUWE, HARTMUT;PANTEN, JOHANNES;SCHAEFER, KLAUS |
分类号 |
C07C29/17;C07B61/00;C07C29/145;C07C31/135;C11B9/00 |
主分类号 |
C07C29/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|