Hydrogen Bromide → 4,4-Diphenyl-3-butenyl bromide

Participants

Reaction Steps

At 0° C., cyclopropyl-diphenyl-carbinol (10.0 g) is dissolved in a hydrogen bromide solution 48% (40 ml). After being subjected to agitation for 5 hours at 0° C., the medium is diluted with water and dichloromethane, then the organic phase is washed three times with water. The organic phase is dried on MgSO4, filtered and concentrated to obtain the expected product as an orange oil (11.89 g).

Provenance & Evidence