1-Bromo-3-chloropropane → HCID 10753354, compound

Participants

Reaction Steps

55.4 ml (0.4 mol) triethylamine were added to a solution of 35.2 g (0.2 mol) 1-(4-methylphenyl)-piperazine and 31.5 g (0.2 mol) 1-chloro-3-bromopropane in 41 ml anhydrous tetrahydrofuran and the reaction mixture then stirred for six hours at 60°-65°C. Thereafter, the crystals which had precipitated out were filtered off with suction and the filtrate was evaporated in a vacuum. There was obtained a quantitative yield of crude 1-(3-chloropropyl)-4-(4-methylphenyl)-piperazine which was purified by rapid distillation at an efficient oil pump vacuum. The yield was 41.23 g (80% of theory); b.p. 147°-150°C/0.05 mm HG; m.p. 34°-36°C.

Provenance & Evidence