4-Toluenesulfonyl chloride → HCID 87741738, compound

Participants

Reaction Steps

To a solution of Example 20B (950 mg, 2.4 mmol) in CH2Cl2 (30 mL) was added para-toluenesulfonyl chloride (1.09 g, 5.7 mmol), 4-dimethylaminopyridine (50 mg, 0.41 mmol) and triethylamine (1.1 mL. 7.9 mmol) and the mixture was stirred at room temperature for 16 hours. The mixture was diluted with CH2Cl2 (100 mL), washed with H2O, dried (MgSO4), filtered and concentrated under reduced pressure. The residue was purified on silica gel eluting with EtOAc:hexanes (25:75) to provide the title compound.

Provenance & Evidence