4-Toluenesulfonyl chloride → HCID 14697189, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2.07 g of the compound obtained in Example 6 in 4.2 ml of pyridine was added 1.49 g of p-toluenesulfonyl chloride and the mixture was stirred at an external temperature of 5° C. for 3 days. To the mixture was added ethyl acetate, and the solution was washed successively with 1 N hydrochloric acid, a saturated sodium bicarbonate aqueous solution and water, and then dried over anhydrous magnesium sulfate The solvent was removed under reduced pressure. The residue was purified through silica gel column chromatography to yield 2.76 g of the titled compound.

Provenance & Evidence