ChemInform Abstract: Enantioselective Synthesis of Cyclohexenylalkenes by Asymmetric Deprotonation of 4-tert-Butylcyclohexanone Followed by O-Nonaflation and Heck Couplings.
Abstract
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ChemInform Abstract
Asymmetric deprotonation of 4-tert-butylcyclohexanone allows the synthesis of the enantio-enriched silyl enol ether (III) or the related nonaflate (V). In situ generated nonaflate is utilized in Heck-type coupling reactions leading to dienes (VII)/(VIII) and (X).