Acetic Acid → HCID 67445097, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 1-(3-(trifluoromethyl)phenyl)ethanone (0.100 g, 0.532 mmol), tert-butyl piperazine-1-carboxylate (0.148 g, 0.797 mmol), acetic acid (0.046 mL, 0.797 mmol) and sodium cyanoborohydride (0.050 g, 0.797 mmol) in ethanol (0.5 mL) was heated under nitrogen at 75° C. After stirring overnight the reaction was concentrated, saturated sodium bicarbonate (0.7 mL) was added, and the product was extracted into ethyl acetate (2×0.7 mL). The combined organic layers were concentrated, dissolved in a minimal amount of dichloromethane, loaded directly onto a SF15-12 silica gel column (Analogix®, Burlington, Wis.), and the title compound was eluted using a gradient of 2% to 20% ethyl acetate/hexanes over 20 minutes (flow=30 mL/minute).

Provenance & Evidence