its all about organometallic chemistry of zinc and copper metal
Reaction of Organocuprates Substitution of alkyl halides (cont’d) • While homocuprates readily undergo substitution reactions at primary positions, they do not couple well with unactivated secondary halides. • However, cyanocuprates undergo substitution reactions even at unactivated secondary carbon centers.
Reaction of Organocuprates Substitution of alkyl halides (cont’d) mechanism for the substitution reaction is complex, depending on nature of cuprate reagent, substrate, and solvent used. • reaction may proceed via an S N 2 displacement or via an oxidative addition followed by reductive elimination.