Triethylamine → N,N-Diallyl-N-({5-[(4-{3-[(trifluoromethyl)sulfonyl]anilino}piperidin-1-yl)sulfonyl]-thien-2-yl}methyl)amine

Participants

Reaction Steps

A solution of 4-(3-trifluoromethanesulfonyl-phenylamino)-piperidine (731 mg, 237 mmol) and Et3N (0.5 mL, 3.58 mmol) in CH2Cl2 (20 mL) was treated with the diallylamino sulfonyl chloride 269b 23° C. A thick precipitate appeared within 5 min, and the mixture was stirred overnight (even if complete within minutes). Dilution with CH2Cl2 (50 mL), washing (1120; brine), drying (MgSO4), and evaporation afforded the crude product, which was filtered over silica gel (AcOEt:cyclohexane 1:1) to afford 1.15 g (86%) of the title bisallylamine, which was used in the next step without further purification.

Provenance & Evidence