| Literature DB >> 26187028 |
Inji Shin1, Michael J Krische2.
Abstract
Cyclometalated π-allyliridium C,O-benzoate complexes modified by axially chiral chelating phosphine ligands display a pronounced kinetic preference for primary alcohol dehydrogenation, enabling highly site-selective redox-triggered carbonyl additions of chiral primary-secondary 1,3-diols with exceptional levels of catalyst-directed diastereoselectivity. Unlike conventional methods for carbonyl allylation, the present redox-triggered alcohol C-H functionalizations bypass the use of protecting groups, premetalated reagents, and discrete alcohol-to-aldehyde redox reactions.Entities:
Keywords: Allylation; Dehydrogenation; Diastereoselectivity; Enantioselectivity; Green chemistry; Iridium; Polyketides; Transfer hydrogenation
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Year: 2016 PMID: 26187028 PMCID: PMC4716893 DOI: 10.1007/128_2015_651
Source DB: PubMed Journal: Top Curr Chem ISSN: 0340-1022