Triethylamine → tert-Butyl 1-benzyl-7-((cyclopropylmethylsulfonamido)methyl)-1,2,3,4-tetrahydronaphthalen-2-ylcarbamate

Participants

Reaction Steps

tert-Butyl 7-(aminomethyl)-1-benzyl-1,2,3,4-tetrahydronaphthalen-2-ylcarbamate (0.600 g, 1.637 mmol) was suspended in dichloromethane (5 mL) and triethylamine (0.228 mL, 1.637 mmol) and cooled to 0° C. Cyclopropylmethanesulfonyl chloride (0.253 g, 1.637 mmol) was added. The solid immediately dissolved. The mixture was stirred overnight and then diluted with dichloromethane and washed with brine (3×50 mL). The organic extract was collected dried on MgSO4 and evaporated under reduced pressure. The residue was purified by flash-chromatography on silica gel (100% dichloromethane 5 minutes then gradient to 1% MeOH in dichloromethane). Product was isolated as white powder (601.9 mg, 1.24 mmol, 76%).

Provenance & Evidence