N-bromobutanimide → 4'-(Bromomethyl)-2-cyanobiphenyl

Participants

Reaction Steps

7.9 g of 4'-methyl-2-cyanobiphenyl, prepared in A), are dissolved in 100 ml of carbon tetrachloride in the presence of 7.3 g of N-bromosuccinimide and 0.3 g of benzoyl peroxide. The mixture is heated to reflux for 6 hours and the crystals are filtered off; the remaining solution is concentrated under vacuum and the residue is crystallised in ether to give 6.6 g of 4'-bromomethyl-2-cyanobiphenyl in the form of crystals of melting point 115°-118° C.

Provenance & Evidence