PROCESS FOR PREPARING ALPHA-(3-BENZYLPHENYL)PROPIONIC ACID DERIVATIVE
申请人:NIPPON PETROCHEMICALS COMPANY, LIMITED
公开号:EP0306538A1
公开(公告)日:1989-03-15
A process for preparing a-(3-benzylphenyl)propionic acid or its derivative, a precursor of ketoprofen (trade name), which comprises dehydrogenating a by-product oil fraction formed in the production of ethylbenzene using synthetic zeolite as an alkylating catalyst, and carbonylating the product with carbon monoxide or the like. This precursor can be easily converted into ketoprofen, a useful medicine as an anti-inflammatory agent.