Organometallics

Mechanisms of the elimination reactions of Os (CO) 4 (H) R and Os (CO) 4R2

WJ Carter, SJ Okrasinski, JR Norton

Index: Carter, W. J.; Okrasinski, S. J.; Norton, J. R. Organometallics, 1985 , vol. 4, p. 1376 - 1386

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Citation Number: 21

Abstract

Kinetic and labeling studies of alkane elimination from cis-Os (CO),(H) R have shown that the ratedetermining step is isomerization of cis-Os (CO),(H) R to a reactive intermediate (probably an acyl hydride); this intermediate can then react either with unisomerized cis-Os (CO),(H) R to give intermolecular RH elimination (and HOs (CO), Os (CO), R) or with another nucleophile L to give intramolecular RH elimination (and Os (CO), L). The ck-Os (CO),(H) ...