(4-Bromophenyl)boronic acid → 1-(1-(4-Bromophenyl)piperidin-4-yl)-4-methylpiperazine

Participants

Reaction Steps

1-[1-(4-Bromo-phenyl)-piperidin-4-yl]-4-methyl-piperazine was prepared from 1-methyl-4-piperidin-4-yl-piperazine (0.50 g, 2.7 mmol) and 4-bromobenzeneboronic acid (0.50 g, 2.5 mmol) in a manner analogous to Step 49a. The reaction product isolated as a tan solid (0.077 g, 9%). 1H NMR (400 MHz, CDCl3, δ, ppm): 7.32 (d, J=7.9 Hz, 2H), 6.79 (d, J=7.7 Hz, 2H), 3.72-3.65 (m, 2H), 2.85-2.35 (m, 14H), 2.00-1.90 (m, 2H), 1.73-1.60 (m, 2H). MS=338, 340 (MH)+.

Provenance & Evidence