Piperazine → 1-(2-Chlorophenyl)piperazine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a stirred sol of 1-bromo-2-chlorobenzene (0.606 mL, 5.22 mmol) in toluene (10 mL) was added Pd2(dba)3 (0.239 g, 0.26 mmol), BINAP (0.163 g, 0.26 mmol), sodium tert-butoxide (0.753 g, 7.83 mmol) and piperazine (1.350 g, 15.67 mmol) and the resulting sol was heated at 110 °C for 16h. Cooled to rt, filtered through a celeite pad, volatiles were evaporated off and residue was column chromatographed (DCM:MeOH 90:10) to afford 1-(2-chlorophenyl)piperazine (0.450 g, 43.8 %) as a gum.

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