Isolation of σ-alkyl-iron(III) or carbene-iron(II) complexes from reduction of polyhalogenated compounds by iron(II)-porphyrins: the particular case of halothane CF3CHClBr

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Abstract
FeII(TPP)(TPP = tetraphenylporphyrin), in the presence of an excess of sodium dithionite, reacts with CF3CCl3 and halothane CF3CHClBr, leading respectively to the carbene FeII(TPP)(CCICF3) and σ-alkyl-FeIII(TPP)-(CHCICF3) complexes, the latter being the first isolated σ-alkyl-FeIII(porphyrin) complex involving a halogen substituent on the carbon bound to iron.
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