Generation of β‐, γ‐, δ‐, ε‐, and ζ‐Zinc Ketones and Their Transition‐Metal‐Catalyzed Reactions with Carbon Electrophiles

CC coupling reactions at practically any distance from the carbonyl group of a ketone are made possible by the very stable zinc ketones 1 (X = alkyl, aryl; n = 2–6), which are formed by insertion of Zn into the CI bond of the corresponding iodoketones. The reaction of 1 with electrophiles is exemplified by reaction (a). The yield is 77%.