Benzene → 4-[2-(Bromomethyl)-1,3-dioxolan-2-yl]benzonitrile

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Reaction Steps

To a stirred solution of 112 parts of 4-(2-bromoacetyl)benzonitrile in 320 parts of butanol are added 5 parts of 4-methylbenzenesulfonic acid and 360 parts of benzene. Then there are added dropwise 46.5 parts of 1,2-ethanediol. Upon completion, stirring is continued for 4 hours at reflux. The reaction mixture is evaporated. The oily residue is crystallized from 2,2'-oxybispropane. The product is filtered off and recrystallized from methanol, yielding 95.12 parts of 4-[2-(bromomethyl)-1,3-dioxolan-2-yl]benzonitrile; mp. 92.4° C.

Provenance & Evidence