反応 #601

反応方程式

Clc1ccccc1Br

C1CNCCN1

→

Clc1ccccc1N1CCNCC1

収率 58.4%

溶媒

Cc1ccccc1

反応条件

実験手順

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 16 h. Filtered through a celeite pad & crude mixture was purified by column chromatography to afford (DCM:MeOH 90:10) to afford 1-(2-chlorophenyl)piperazine (0.600 g, 58.4 %) as a brown gum.

出典