Silica → Monochloromethyl 2-trifluoromethyl-3,3,3-trifluoropropanoate

반응식

[Cl:1][CH2:2][O:3][C:4](F)(F)[CH:5]([C:10]([F:13])([F:12])[F:11])[C:6]([F:9])([F:8])[F:7].[Si](=O)=[O:17].S(F)(=O)(=O)O>>[F:7][C:6]([F:9])([F:8])[CH:5]([C:10]([F:13])([F:12])[F:11])[C:4]([O:3][CH2:2][Cl:1])=[O:17]

참가 물질

반응물 3

HCID 24261Silica

HCID 24603Fluorosulfuric acid

HCID 138276951-Chloromethoxy-1,1-difluoro-2-trifluoromethyl-3,3,3-trifluoropropane

생성물 1

HCID 13954659Monochloromethyl 2-trifluoromethyl-3,3,3-trifluoropropanoate

실험 절차

In a four necked 1 liter flask equipped with a thermometer, a condenser and a stirrer, 1-chloromethoxy-1,1-difluoro-2-trifluoromethyl-3,3,3-trifluoropropane (276.6 g, 1.04 mol), silicon dioxide and fluorosulfuric acid (70.0 g, 0.70 mol) were charged. The reaction was continued at 110° C. for 21 hours. Then, the reaction mixture was distilled to give monochloromethyl 2-trifluoromethyl-3,3,3-trifluoropropanoate (190.3 g).