1-(3-(Trifluoromethyl)phenyl)piperazine → HCID 66920127, compound

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Reaction Steps

2.53 g of (S)-2-Benzyloxycarbonylamino-pentanedioic acid 5-tert-butyl ester and 2.46 g of TOTU was dissolved in 15 ml of DMF. The, 3.29 ml of N-Methylmorpholine was added and the mixture was stirred for 30 min at RT. 1.72 g of 1-(3-Trifluoromethyl-phenyl)-piperazine was added and stirring was continued for 5 h. The mixture was diluted with ethyl acetate and washed with saturated sodium hydrogen carbonate solution. Drying of the organic phase over sodium sulfate and evaporation of the solvents under reduced pressure afforded a brownish powder that was purified by chromatography over silica gel eluting with ethyl acetate/heptane 1:2 to 100% ethyl acetate to give 7 g of the desired product.

Provenance & Evidence