4-(5-Nitro-pyrimidin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester → 1,1-Dimethylethyl 4-(5-amino-2-pyrimidinyl)-1-piperazinecarboxylate

Participants

Reaction Steps

To a solution of 4-(5-nitro-pyrimidin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester (927 mg, 3 mmol, prepared from 2-chloro-5-nitropyrimidine and N-Boc-piperazine) in tetrahydrofuran (20 mL) and methanol (30 mL) was added 10% palladium on carbon (240 mg) and the mixture was hydrogenated at 50 psi for 1 hr. The mixture was filtered and the solvents were evaporated. The residue was dried in vacuum to give 4-(5-amino-pyrimidin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester.

Provenance & Evidence