申请人:Central Glass Company, Limited
公开号:EP2554534A1
公开(公告)日:2013-02-06
A production method of difluoroacetyl chloride according to the present invention includes a chlorination step of bringing a raw material containing at least either a 1-alkoxy-1,1,2,2-tetrafluoroethane or difluoroacetyl chloride into contact with calcium chloride at a reaction enabling temperature. A production method of 2,2-difluoroethyl alcohol according to the present invention includes a catalytic reduction step of causing catalytic reduction of the difluoroacetyl chloride obtained by the above production method. By these methods, the difluoroacetyl fluoride can be efficiently converted to the difluoroacetyl chloride and to the 2,2-difluoroethyl alcohol.
根据本发明的一种二氟乙酰氯的生产方法包括一个氯化步骤,在反应使能温度下,使含有至少1-烷氧基-1,1,2,2-四氟乙烷或二氟乙酰氯的原料与氯化钙接触。根据本发明,2,2-二氟乙醇的生产方法包括催化还原步骤,即对通过上述生产方法获得的二氟乙酰氯进行催化还原。通过这些方法,二氟乙酰氟可以有效地转化为二氟乙酰氯和 2,2-二氟乙醇。