Title

Reactivity of Tricarbonyl(pentadienyl)iron(1+) Cations: Preparation of an Optically Pure Tricarbonyl(diene)iron Complex via Second-Order Asymmetric Transformation

Document Type

Article

Language

eng

Publication Date

1994

Publisher

American Chemical Society

Source Publication

Organometallics

Source ISSN

0276-7333

Abstract

Summary: Reactions of tricarbonyl(2,4-dimethylpentadienyl)iron(l+) hexafluorophosphate (1) with sodium methoxide/methanol and with phosphines are reported. Use of (S)-neomenthyldiphenylphosphine gives a 3:2 mixture of diastereomers. Slow diffusion-controlled recrystallization of the mixture gives the single, optically pure diastereomer 6a in >80% mass recovery via a second-order asymmetric transformation involving reversible addition of the phosphine. The stereochemistry of 6a at C2 (S) was determined by single-crystal X-ray diffraction analysis.

Comments

Organometallics, Vol. 13, No. 1 (1994): 6-7. DOI.

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