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P. Müller, G. Bernardinelli, S. Motallebi,
“Isolation and Characterization of σ-Adducts upon Attempted Vicarious Nucleophilic Substitution with Cationic Arene-Iron Complexes”
Helv. Chim. Acta 1990, 73, 1242-1249.
Reaction of the carbanions derived from chloromethyl phenyl sulfone or 1 -chloroethyl phenyl sulfone with the cationic [Fe(arene)Cp] complexes 8 or 9 produced isolable c-adducts 10-12. Attempted base induced elimination of the s?-adducts, which would have led to products of vicarious nucleophilic substitution (VNS reaction), failed. Similarly, no VNS products were obtained, when the (arene)tricarbonylchromium complexes 4 were reacted with the anion of chloromethyl phenyl sulfone.
DOI : 10.1002/hlca.19900730514
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