[EN] CATALYTICAL SYNTHESIS OF INTERNAL FLUOROBUTENES AND INTERNAL FLUOROPENTENES<br/>[FR] SYNTHÈSE CATALYTIQUE DE FLUOROBUTÈNES INTERNES ET DE FLUOROPENTÈNES INTERNES
申请人:DU PONT
公开号:WO2012067864A1
公开(公告)日:2012-05-24
A vapor phase process is disclosed for making internal fluorobutenes. The process involves contacting a halobutane starting material selected from the group consisting of CF2HCHCICH2CCI2H, CF2HCHCICH2CCI3, CF3CHCICH2CCI2H, CF3CHCICH2CCI3, CF3CHCICHCICCI2H, CF3CHCICHCICCI3, CF3CCI2CH2CCI2H, CF3CCI2CH2CCI3, CF3CCI2CHCICCI2H, CF3CCI2CHCICCI3, CF3CCIFCHCICCI2H, CF3CCIFCHCICCI3, CF3CCIFCH2CCI2H, CF3CCIFCH2CCI3, CF3CCIFCHFCCI2H, CF3CCIFCHFCCI3, CF3CCIHCHFCCI2H and CF3CCIHCHFCCI3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluorobutene. Another vapor phase process is disclosed for making internal fluoropentenes. The process involves contacting a halopentane starting material selected from the group consisting of CF2HCHXCH2CX2CX3, CF3CHXCH2CX2CX3, CF3CHXCHXCX2CX3, CF3CX2CH2CX2CX3, CF3CX2CHXCX2CX3 and CF3CHXCHFCX2CX3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluoropentene, wherein each X is independently selected from the group consisting of F, CI and Br, provided that not all X are fluorines.
公开了一种用于制备内部氟丁烯的蒸汽相过程。该过程涉及将选自以下群组的卤丁烷起始物与氟化氢在反应区中接触,存在铬氧氟化物催化剂,以产生包含内部氟丁烯的产品混合物。另一种公开的蒸汽相过程用于制备内部氟戊烯。该过程涉及将选自以下群组的卤戊烷起始物与氟化氢在反应区中接触,存在铬氧氟化物催化剂,以产生包含内部氟戊烯的产品混合物,其中每个X独立地选自F、Cl和Br的群组,前提是并非所有X都是氟。