Thionyl Chloride → Butyl 4-(chlorocarbonyl)phenyl carbonate
Reaction equation
S(Cl)([Cl:3])=O.[CH2:5]([O:9][C:10]([O:12][C:13]1[CH:21]=[CH:20][C:16]([C:17](O)=[O:18])=[CH:15][CH:14]=1)=[O:11])[CH2:6][CH2:7][CH3:8]>C(Cl)(Cl)(Cl)Cl>[CH2:5]([O:9][C:10]([O:12][C:13]1[CH:21]=[CH:20][C:16]([C:17]([Cl:3])=[O:18])=[CH:15][CH:14]=1)=[O:11])[CH2:6][CH2:7][CH3:8]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
On the other hand, 15 ml of carbon tetrachloride (solvent) and 3 ml of thionyl chloride were added to 2.16 g (0.0158 mol) of 4-n-butoxycarbonyloxy benzoic acid, and the mixture was heated and refluxed. After sufficiently reacting them, excess thionyl chloride and carbon tetrachloride (solvent) were distilled off under reduced pressure to obtain 4-butoxycarbonyloxy benzoic acid chloride (one having Formula 7 wherein R2 is a n-butyl group).