申请人:Sumitomo Chemical Company, Limited
公开号:EP2236504A1
公开(公告)日:2010-10-06
A process for production of 4-vinyl-2,3-dihydrobenzofuran, which comprises a step including a reaction of 4-halo-2,3-dihydrobenzofuran with ethylene in the presence of a palladium compound and a base to produce crude 4-vinyl-2,3-dihydrobenzofuran, and a step of supplying the crude 4-vinyl-2,3-dihydrobenzofuran continuously or intermittently to a distillation apparatus to distill 4-vinyl-2,3-dihydrobenzofuran.
一种生产4-乙烯基-2,3-二氢苯并呋喃的工艺,它包括一个步骤,包括4-卤代-2,3-二氢苯并呋喃在钯化合物和碱存在下与乙烯反应生成粗4-乙烯基-2、2,3-二氢苯并呋喃,以及连续或间歇地将粗 4-乙烯基-2,3-二氢苯并呋喃供给蒸馏装置以蒸馏 4-乙烯基-2,3-二氢苯并呋喃的步骤。