The mechanism of substitution of π-(PhCHCHCOR)Fe(CO)3 complexes with PPh3, AsPh3 and SbPh3 (original) (raw)

Journal of Organometallic Chemistry, 1975

Abstract

Abstract The reaction between π-(PhCHCHCOR)Fe(CO) 3 (R = H, CH 3 , Ph) and L (L = PPh 3 , AsPh 3 , SbPh 3 ) in acetone occurs in two steps. The products of the first step are the π-(PhCHCHCOR)Fe(CO) 3 L complexes, which in the second step yield Fe(CO) 3 L 2 and π-(PhCHCHCOR)Fe(CO) 2 L. The kinetic results indicate that the first step is association of the substrate with the ligand. The variation of the ratio [Fe(CO) 3 L 2 ]/[π-(PhCHCHCOR)Fe(CO) 2 L] with L suggests three different reaction paths for the second step.

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