公开(公告)号：EP1187801A4

公开(公告)日：2002-09-18

申请号：EP99957434

申请日：1999-12-04

申请人： KOREA KUMHO PETROCHEM CO LTD

发明人： JOO YOUNG J ,  KIM JIN-EOK ,  KIM CHANG-MIN ,  WON JEONG-IM ,  JOO HYUN-SANG

IPC分类号： C07C51/00 ,  C07B61/00 ,  C07C51/353 ,  C07C51/36 ,  C07C61/08

CPC分类号： C07C51/353 ,  C07C51/36 ,  C07C61/22 ,  C07C61/08

摘要： Disclosed herein is a method of preparing cyclohexanecarboxylic acid in which 1,3-butadiene and acrylic acid are subjected to [2+4] Diels-Alder reaction to produce 3-cyclohexene-1-carboxylic acid which is then hydrogenated. The [2+4] Diels-Alder reaction is carried out at a temperature of room temperature to 200 °C in an aromatic hydrocarbon solvent, such as toluene or xylene. The hydrogenation is carried out at a temperature of room temperature to 150 °C under a hydrogen pressure of 10 psi to 150 psi in the presence of the platinum of palladium catalyst. The disclosed method is featured in that it enables the use of 1,3-butadiene as the raw material for fine chemicals, unlike the prior methods. Moreover, the method disclosed is advantageous in that the reaction can be carried out in a relatively simple and easy manner and also the reaction by-products can be conveniently treated after the reaction.