Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones

The construction of enantioenriched azabicyclo[3.3.1]nonan-6-one heterocycles via an enantioselective desymmetrization of allene-linked cyclohexanones, enabled through a dual catalytic system, that provides synchronous activation of the cyclohexanone with a chiral prolinamide and the allene with a c...

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Main Authors: Zhang, L, Yamazaki, K, Leitch, JA, Manzano, R, Atkinson, AM, Hamlin, TA, Dixon, DJ
Formato: Journal article
Idioma:English
Publicado: Royal Society of Chemistry 2020
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author Zhang, L
Yamazaki, K
Leitch, JA
Manzano, R
Atkinson, AM
Hamlin, TA
Dixon, DJ
author_facet Zhang, L
Yamazaki, K
Leitch, JA
Manzano, R
Atkinson, AM
Hamlin, TA
Dixon, DJ
author_sort Zhang, L
collection OXFORD
description The construction of enantioenriched azabicyclo[3.3.1]nonan-6-one heterocycles via an enantioselective desymmetrization of allene-linked cyclohexanones, enabled through a dual catalytic system, that provides synchronous activation of the cyclohexanone with a chiral prolinamide and the allene with a copper(I) co-catalyst to deliver the stereodefined bicyclic core, is described. Successful application to oxygen analogues was also achieved, thereby providing a new enantioselective synthetic entry to architecturally complex bicyclic ethereal frameworks. The mechanistic pathway and the origin of enantio- and diastereoselectivities has been uncovered using density functional theory (DFT) calculations.
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spelling oxford-uuid:a1ccded9-f45f-453e-b127-fa2bfcbb1e2e2024-01-29T12:33:52ZDual catalytic enantioselective desymmetrization of allene-tethered cyclohexanonesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a1ccded9-f45f-453e-b127-fa2bfcbb1e2eEnglishExternalRoyal Society of Chemistry2020Zhang, LYamazaki, KLeitch, JAManzano, RAtkinson, AMHamlin, TADixon, DJThe construction of enantioenriched azabicyclo[3.3.1]nonan-6-one heterocycles via an enantioselective desymmetrization of allene-linked cyclohexanones, enabled through a dual catalytic system, that provides synchronous activation of the cyclohexanone with a chiral prolinamide and the allene with a copper(I) co-catalyst to deliver the stereodefined bicyclic core, is described. Successful application to oxygen analogues was also achieved, thereby providing a new enantioselective synthetic entry to architecturally complex bicyclic ethereal frameworks. The mechanistic pathway and the origin of enantio- and diastereoselectivities has been uncovered using density functional theory (DFT) calculations.
spellingShingle Zhang, L
Yamazaki, K
Leitch, JA
Manzano, R
Atkinson, AM
Hamlin, TA
Dixon, DJ
Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title_full Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title_fullStr Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title_full_unstemmed Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title_short Dual catalytic enantioselective desymmetrization of allene-tethered cyclohexanones
title_sort dual catalytic enantioselective desymmetrization of allene tethered cyclohexanones
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AT yamazakik dualcatalyticenantioselectivedesymmetrizationofallenetetheredcyclohexanones
AT leitchja dualcatalyticenantioselectivedesymmetrizationofallenetetheredcyclohexanones
AT manzanor dualcatalyticenantioselectivedesymmetrizationofallenetetheredcyclohexanones
AT atkinsonam dualcatalyticenantioselectivedesymmetrizationofallenetetheredcyclohexanones
AT hamlinta dualcatalyticenantioselectivedesymmetrizationofallenetetheredcyclohexanones
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