[EN] ORGANOZINC COMPLEXES AND PROCESSES FOR MAKING AND USING THE SAME [FR] COMPLEXES D'ORGANOZINC ET PROCÉDÉS POUR LEUR FABRICATION ET LEUR UTILISATION
Powdered organozinc reagents: Various aryl and heteroaryl bromides as well as benzylic chlorides react with Mg and Zn(OPiv)2⋅2 LiCl (OPiv=pivalate) to provide solid organozinc reagents after solvent evaporation. These powders can be stored at room temperature under argon for months and can be manipulated in air for a short time. They undergo smooth Negishi cross‐coupling and carbonyl addition reactions