发明名称 |
PROCESS FOR THE PREPARATION OF ESTERS OLEFINIC UNSATURATED CARBOXYLIC ACIDS WITH A TERMINAL ESTER GROUP |
摘要 |
<p>Olefinically unsaturated carboxylic esters having a terminal ester group and of the general formulae Ia and Ib R1-CH2-CH=CH-(CH2)r-1-COOR2 (Ia) R1-CH=CH-(CH2)r-COOR2 (Ib) and, if desired, further double bond isomers, where R1 is hydrogen or an organic radical, R2 is C1-C8-alkyl and r is from 1 to 20, are prepared by a process in which an alpha -substituted alpha , omega -(n-alkylenedicarboxylic ester) of the general formula II <IMAGE> (II) where R1 and R2 and r have the abovementioned meanings and R3 is C1-C8-alkyl, is converted over an acidic heterogeneous catalyst at from 150 DEG to 800 DEG C. and under from 0.01 to 50 bar.</p> |
申请公布号 |
EP0338427(B1) |
申请公布日期 |
1993.08.18 |
申请号 |
EP19890106599 |
申请日期 |
1989.04.13 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MERGER, FRANZ, DR.;HORLER, HANS, DR.;HOELDERICH, WOLFGANG, DR.;WITZEL, TOM, DR. |
分类号 |
B01J29/04;B01J29/40;B01J29/83;B01J29/85;B01J29/86;B01J29/88;C07B61/00;C07C67/32;C07C69/533 |
主分类号 |
B01J29/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|