Hydrogen Bromide → HCID 22406878, compound

Participants

Reaction Steps

A mixture of 1 -[1-(2,4 -dichlorophenyl)cyclopropyl]-6-fluoro-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline (8.5 g), 48% aqueous hydrobromic acid (100 ml) and glacial acetic acid (100 ml) was heated under reflux for 2 hours. The solvents were removed in vacuo and the residue dried by azeotropic distillation with propan-2-ol. The resulting solid was recrystallised from propan-2-ol to yield 1-[1-(2,4-dichlorophenyl)cyclopropyl]-6-fluoro-7-hydroxy-2-methyl-1,2,3,4-tetrahydroisoquinoline hydrobromide (7.2 g), m.p. 235°-237° C.

Provenance & Evidence