Phenol → Carbonic acid, chloromethyl phenyl ester
Reaction equation
Cl[C:2]([O:4][CH2:5][Cl:6])=[O:3].[C:7]1([OH:13])[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.N1C=CC=CC=1>C(Cl)Cl>[C:2](=[O:3])([O:13][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[O:4][CH2:5][Cl:6]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a solution of chloromethyl chloroformate (1 g, 7.8 mmol) in DCM (40 mL) was added a mixture of phenol (0.73 g, 7.8 mmol) and pyridine (750 μL, 9.3 mmol) in DCM (10 mL) at −20° C. over 20 min. The reaction was stirred at 0° C. for 4 h, then at rt for another 1 h. The mixture was washed with 1N HCl solution (50 mL), followed by brine (50 mL). The organic phase was dried over anhydrous Na2SO4 and concentrated in vacuo. The residue was purified by a silica gel column chromatography (PE/EtOAc (v/v)=100/1) to give the title compound as colorless oil (847 mg, 58.2%). The title compound was characterized by 1H NMR as shown below:
Workup
- waitat rt for another 1 h
- washThe mixture was washed with 1N HCl solution (50 mL)
- dry with materialThe organic phase was dried over anhydrous Na2SO4
- concentrationconcentrated in vacuo
- customThe residue was purified by a silica gel column chromatography (PE/EtOAc (v/v)=100/1)
Sources & evidence
- ORD record
- ord-917756bc04f14154850763b18707cdad
- Source dataset
- uspto-grants-2016_07
- Patent number
- US09399639B2
Reaction notes
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