专利号:EP-0289036-A1 优先权日:1987-04-30 标题:Preparation of 3-chloro-4,5-difluorobenzotrifluoride 发明人:MUNDHENKE RUDOLPH F; TANG DAVID Y 权利人:OCCIDENTAL CHEM CO 摘要:In the synthesis of 3-chloro-4,5-difluorobenzotrifluoride by reaction of KF with 3,5-dichloro-4-fluorobenzotrifluoride, the production of undesirable by-products, especially over-fluorinated materials such as trifluorobenzotrifluoride is minimized when the reaction is run at a temperature of 196° to 206° Celsius in the presence of N-methyl-2-pyrrolidone.
专利号:SU-1710560-A1 优先权日:1989-11-29 标 题:Method of dihydrothiopyranes synthesis
摘要:García Ruano, J. L.; Cid, M. B.; Martín-Castro, A. M.; Alemán, J., Science of Synthesis, (2008) 39, 254. 摘要:García Ruano, J. L.; Cid, M. B.; Martín-Castro, A. M.; Alemán, J., Science of Synthesis, (2008) 39, 260. 摘要:García Ruano, J. L.; Cid, M. B.; Martín-Castro, A. M.; Alemán, J., Science of Synthesis, (2008) 39, 271.