The 1,2-fluorine atom migration in the epoxide of 1,1-dichlorodifluoroethene. The infrared spectrum of dichlorofluoroacetyl fluoride
作者:Joanna Czarnowski
DOI:10.1016/s0022-1139(00)82372-6
日期:1990.5
reaction of NO2 with 1,1- dichlorodifluoroethene, CF2CCl2, in presence of O2 at 257.3 K and 300.2°K. Five other products: COF2, COCl2, O2NCF2C(O)Cl, CF2ClCCl2NO2 and CF2ClCCl2O2NO2 were also formed in minor amounts or traces, depending on the relation between NO2, CF2CCl2 and O2. The initial pressure of NO2 was varied between 0.7 and 4.7 torr, that of CF2CCl2 between 18.4 and 81.9 torr, and that of O2 between
1,2-二氯二氟乙烯的环氧化物和氯二氟乙酰氯CF 2 ClC(O)Cl是在存在下NO 2与1,1-二氯二氟乙烯CF 2 CCl 2进行气相热反应的主要产物。在257.3 K和300.2°K下的O 2含量。根据NO之间的关系,还少量或痕量地形成了其他五种产品:COF 2,COCl 2,O 2 NCF 2 C(O)Cl,CF 2 ClCCl 2 NO 2和CF 2 ClCCl 2 O 2 NO 2。2个CF 2 CCl 2和O 2。NO 2的初始压力在0.7至4.7托之间变化,CF 2 CCl 2的初始压力在18.4至81.9托之间变化,O 2的初始压力在50.4至696.3托之间变化。从未观察到向CF 2 ClC(O)Cl的异构化,但是,在存在汞蒸气的情况下,发生了向CFCl 2 C(O)F的重排,涉及到氟原子意外的1,2-迁移。给出了CFCl 2 C(O)F的红外光谱。提出了基本反应顺序来解释CF