Stereochemical control and mechanistic aspects of the alkylation of [(η5-C5H5)Fe(L)(CO)(COCHR)]–Li+(L = PPh3, PPh2NEt2; R = Me, Et): X-ray crystal structure of [(η5-C6H5)Fe(PPh3)(CO){COCH(Me)Et}]
Abstract
Determination of the molecular structure of [(η5-C5H5)Fe(PPh3)(CO){COCH(Me)Et}], formed in the diastereoselective methylation of [(η5-C5H5)Fe(PPh3)(CO)(COCHEt)]–Li+, allows the assignment of the relative configuration of the new chiral centre and indicates the origin of the high diastereoselectivities observed in this type of reaction.
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