p-Bromochlorobenzene → HCID 66758990, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 4-chlorobromobenzene (1.05 g, 5.5 mmol) and 3-(S)-Methyl-piperazine-1-carboxylic acid tert-butyl ester (1 g, 5 mmol) in toluene (30 mL) was added tris(dibenzylideneacetone) dipalladium(0) (0.057 g, 0.063 mmol), BINAP (0.12 g, 0.19 mmol) and sodium-t-butoxide (2.02 g, 21 mmol). The resulting mixture was heated 110° C. for 20 h. The solvent was evaporated and the residue was taken up in ethyl acetate and washed with saturated aqueous sodium bicarbonate and brine and dried over magnesium sulfate. Column chromatography (10% ethyl acetate/hexane) provided 0.79 g (51%) of the title compound.

Provenance & Evidence