发明名称 |
Process for the manufacture of alkenylated hydroxylated aromatic compounds, of chroman compounds and of their acylated derivatives |
摘要 |
The present invention relates to a process for the manufacture of alkenylated aromatic compounds featuring at least one hydroxy group, their ring-closure reactions to 5 chroman derivatives, as well as the acylation of the latter and the aromatic compounds featuring at least one hydroxy group themselves. The present invention relates especially to a process for the manufacture of tocol, tocopherols and their alkanoates such as (x-tocopherol (TCP) and alkanoates (TCPA) thereof, preferably (x-toeopheryl acetate (TCPAc). The processes of the present invention are characterized in that at least one step of the processes is carried out in the presence of an indium salt as the catalyst.
|
申请公布号 |
US7696364(B2) |
申请公布日期 |
2010.04.13 |
申请号 |
US20040005402 |
申请日期 |
2004.12.06 |
申请人 |
DSM IP ASSETS B.V. A NETHERLANDS CORPORATION |
发明人 |
BONRATH WERNER;FORICHER YANN;NETSCHER THOMAS;WILDERMANN ANGELA |
分类号 |
B01J27/06;B01J27/138;C07C37/11;C07D311/58;C07D311/72 |
主分类号 |
B01J27/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|