Hydrochloric Acid → trans-3,4-dichloro-N-(2-hydroxycycloheptyl)aniline hydrochloride salt

Participants

Reaction Steps

A solution of 3,4-dichloroaniline (200 g., 1.23 mole), cycloheptene oxide (400 ml.), and concentrated HCl (2 ml.) is heated at reflux temperature for seven (7) days. The unreacted epoxide is evaporated at 60° C. and the residue is treated with excess ethereal HCl, and a syrup results. This is washed with 1000 ml. of ether. The residue is crystallized and recrystallized from methanol/ether (1/5,5, v/v) to give trans-3,4-dichloro-N-(2-hydroxycycloheptyl)aniline hydrochloride salt.

Provenance & Evidence