| 发明名称 |
PROCESS FOR THE PREPARATION OF AZELEIC ACID FROM 9-OCTADECENEDIOIC ACID |
| 摘要 |
The invention relates to a process for the preparation of azelaic acid or alkyl azelate starting from mono-unsaturated 9-octadecenedioic acid or its corresponding alkylester characterized in that the process comprises at least the following step: reacting the mono-unsaturated 9-octadecene dioic acid or its corresponding alkylester with hydrogen peroxide in the presence of an organic carboxylic acid other than 9-octadecene dioic acid and a suitable catalyst to effect cleavage of the double bond in the mono-unsaturated 9-octadecene dioic acid or its corresponding alkylester. The invention further relates to the azelaic acid or alkyl azelate obtainable by the process according to the invention and to the use of azelaic acid or alkyl azelate or monomers derived there from for the preparation of a polymer, especially a polyamide. |
| 申请公布号 |
US2015183704(A1) |
申请公布日期 |
2015.07.02 |
| 申请号 |
US201214366051 |
申请日期 |
2012.12.12 |
| 申请人 |
DSM IP ASSETS B.V. |
发明人 |
Alsters Paulus Lamburtus |
| 分类号 |
C07C51/285;C08G69/00;C07C55/18 |
主分类号 |
C07C51/285 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Process for the preparation of azelaic acid or alkyl azelate starting from mono-unsaturated 9-octadecenedioic acid or its corresponding alkylester wherein the process comprises at least the following step:
reacting 9-octadecenedioic acid or its corresponding alkylester with aqueous hydrogen peroxide in the presence of an organic carboxylic acid other than 9-octadecene dioic acid and a suitable catalyst to effect cleavage of the double bond in 9-octadecenedioic acid or the corresponding alkylester. |
| 地址 |
Heerlen NL |
