Hydrochloric Acid → Benzene, 1,3-bis(1-chloro-1-methylethyl)-

Participants

Reaction Steps

A 40 l V4A steel stirred reactor was initially charged with 18.0 kg (114 mol) of 1,3-diisopropenylbenzene. 10.1 kg (277 mol) of hydrogen chloride were passed in within 8 h at an internal temperature of 5-10° C. (brine cooling) and an internal pressure of 1.1 bar. The remaining HCl was removed by stripping with nitrogen. 26 kg (99%) of 1,3-bis(α-chloroisopropyl)benzene were obtained as a colorless liquid; chlorine content 30.1%; 1H-NMR (CD2Cl2, 360 MHZ): 2.00 (s, 12 H, methyl), 7.29–7.52 (m, 3 H, aromat. H), 7.82-7.83 (m, 1 H, aromat. H).

Provenance & Evidence