A New Asymmetric Synthesis of Tricarbonylchromium Complexes of ortho-Substituted Benzaldehydes

DOI: 10.1002/hlca.19920750818

Source and publish data:

Helvetica Chimica Acta p. 2657 - 2660 (1992)

Update date:2022-08-02

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Authors:

Kuendig, E. Peter

Liu, Ronggang

Ripa, Alberto

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Article abstract of DOI:10.1002/hlca.19920750818

ortho-Substituted complexes are obtained via nucleophilic addition of alkyl- and aryllithium reagents to a complex followed by endo-hydride abstraction with triphenylmethyl cation.This sequence, when carried out with a complex affords substituted derivatives (Me, Bu, Ph, vinyl) with high (>/= 97percent) diastereoselectivity and, after hydrolysis, ortho-substituted ((S)-1) complexes of high enantiomeric purity.

Full text of DOI:10.1002/hlca.19920750818

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