Substitutions nucleophiles aromatiques SNAr cine et tele sur l'ortho, le meta et le para-chlorotoluenetricarbonylchrome

Article abstract of DOI:10.1016/0022-328X(89)88044-1

The study of the regioselectivity of the addition of a nucleophile to chlorotoluenetricarbonylchromium complexes, under cine or tele S_NAr conditions, indicated that stabilized carbanions added predominantly to the carbon eclipsed by a Cr-CO bond of the most stable conformer.The conformation of p-chlorotoluenetricarbonylchromium has been studied, in solution by 1H NMR and in the solid state by X-ray crystallography.