Hydrochlorofluoroalkenes can be produced by dehydrofluorination of hydrochlorofluoroalkanes over X-ray amorphous high surface metal fluoride or X-ray amorphous or weakly crystalline metal oxide fluoride wherein the metal is selected from the 2nd, 3rd or 4th main group or any subgroup of the periodic system of elements. High-surface aluminium fluoride or aluminium oxide fluoride are especially suitable as catalysts. For example, CF3CH2CHClF is reacted to produce CF3CH=CHCl, and CF3CH2CClFCH3 is reacted to form CF3CH2CCl=CH2 and/or CF3CH=CClCH3.
氢氯氟烯烃可以通过在X射线非晶态高表面积
金属
氟化物或X射线非晶态或弱晶体
金属氧化物氟化物上进行
氢氯氟烷的
脱氟反应而制备,其中
金属被选择自元素周期表的第2、3或4主族或任何亚族。高表面积的
氟化铝或
氧化
铝氟化物是特别适合的
催化剂。例如,CF3 CHClF被反应生成CF3CH=CHCl,CF3 CClFCH3被反应形成CF3 CCl=
CH2和/或CF3CH=CClCH3。