4-Toluenesulfonyl chloride → HCID 22118161, compound

Participants

Reaction Steps

Neopentyl 2,6-dinitromandelate (1.50 g, 4.80 mmol) and p-toluenesulfonyl chloride (1.00 g, 5.28 mmol) were mixed in dry acetone (50 mL) under argon. Dicyclohexylamine (0.957 g, 5.28 mmol) was added slowly to the reaction at 0° C. The mixture was stirred at room temperature for 2 hours at which time the reaction was shown to be complete by thin-layer chromatography (tlc). The acetone was then removed by evaporation under vacuum. The residue was put through a silica gel (60-200 mesh) column using methylene chloride/hexane (1:1) as the eluant. Recrystallization from CHCl3 /petroleum ether gave a yield of 2 g (89%).

Provenance & Evidence