p-Toluenesulfonic acid → HCID 90028018, compound

Participants

Reaction Conditions

Reaction Steps

To (1R,2R)-1-(2-chlorophenyl)-3-(methoxymethoxy)propane-1,2-diol (3.31 g, 13.4 mmol, Preparation example 3), Dichloromethane was added and cooled to 0° C. 2,2-Dimethoxypropane (3.3 ml, 26.8 mmol) and p-toluenesulfonic acid (2 g, 10.7 mmol) was added and stirred at room temperature for 5 hrs. The reaction mixture was quenched with H2O, extracted with DCM, and washed with H2O. The organic layer was dried over anhydrous magnesium sulfate (MgSO4), filtered and concentrated. The crude compound was purified by a silica gel column to produce the title compound (1.05 g, 30˜40%).

Provenance & Evidence