Water → N-(2-(tert-butyldimethylsilyloxy)ethyl)-1,1,1-trifluoropropan-2-amine

関与物質

反応手順

To a stirred solution of 2-(1,1,1-trifluoropropan-2-ylamino)ethanol (40) (5.50 g, 35.0 mmol, Eq: 1.00) in dichloromethane (100 ml) were added diisopropylethylamine (6.33 g, 8.56 ml, 49.0 mmol, Eq: 1.4) followed by tert-butyldimethylsilyl chloride (5.8 g, 38.5 mmol, Eq: 1.1) at room temperature under a nitrogen atmosphere. The resulting solution was stirred for 16 hrs and then it was poured into water (100 ml) and the organic layer was separated, washed with brine, dried (MgSO4), concentrated, and chromatographed (silica gel, gradient 0 to 10% ethyl acetate-hexane) to obtain N-(2-(tert-butyldimethylsilyloxy)ethyl)-1,1,1-trifluoropropan-2-amine (41) (oil, 3.52 g, 13.0 mmol, 37.1% yield).

情報源と証拠