Synthesis of (+)-obtusenyne

An enantioselective synthesis of the halogenated medium-ring ether natural product (+)-obtusenyne is reported which uses the ring expansion of a seven-membered ketene acetal by means of a Claisen rearrangement to construct the core nine-membered oxygen heterocycle. The trans substituents across the...

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Main Authors: Mak, S, Curtis, N, Payne, A, Congreve, MS, Wildsmith, A, Francis, C, Davies, J, Pascu, S, Burton, J, Holmes, AB
Format: Journal article
Language:English
Published: Wiley 2008
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author Mak, S
Curtis, N
Payne, A
Congreve, MS
Wildsmith, A
Francis, C
Davies, J
Pascu, S
Burton, J
Holmes, AB
author_facet Mak, S
Curtis, N
Payne, A
Congreve, MS
Wildsmith, A
Francis, C
Davies, J
Pascu, S
Burton, J
Holmes, AB
author_sort Mak, S
collection OXFORD
description An enantioselective synthesis of the halogenated medium-ring ether natural product (+)-obtusenyne is reported which uses the ring expansion of a seven-membered ketene acetal by means of a Claisen rearrangement to construct the core nine-membered oxygen heterocycle. The trans substituents across the ether linkage were established by using a transition-metalcatalyzed intramolecular hydrosilation reaction of an exo-cyclic enol ether. In addition, a formal synthesis of ent-obtusenyne from 2-deoxy-D-ribose is reported. A number of interesting points regarding the chemistry of mediumring oxygen heterocycles are highlighted. © 2008 Wiley-VCH Verlag GmbH and Co. KGaA.
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spelling oxford-uuid:ff29907b-3326-41ec-af46-696e0862d57d2022-03-27T13:42:35ZSynthesis of (+)-obtusenyneJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ff29907b-3326-41ec-af46-696e0862d57dEnglishSymplectic Elements at OxfordWiley2008Mak, SCurtis, NPayne, ACongreve, MSWildsmith, AFrancis, CDavies, JPascu, SBurton, JHolmes, ABAn enantioselective synthesis of the halogenated medium-ring ether natural product (+)-obtusenyne is reported which uses the ring expansion of a seven-membered ketene acetal by means of a Claisen rearrangement to construct the core nine-membered oxygen heterocycle. The trans substituents across the ether linkage were established by using a transition-metalcatalyzed intramolecular hydrosilation reaction of an exo-cyclic enol ether. In addition, a formal synthesis of ent-obtusenyne from 2-deoxy-D-ribose is reported. A number of interesting points regarding the chemistry of mediumring oxygen heterocycles are highlighted. © 2008 Wiley-VCH Verlag GmbH and Co. KGaA.
spellingShingle Mak, S
Curtis, N
Payne, A
Congreve, MS
Wildsmith, A
Francis, C
Davies, J
Pascu, S
Burton, J
Holmes, AB
Synthesis of (+)-obtusenyne
title Synthesis of (+)-obtusenyne
title_full Synthesis of (+)-obtusenyne
title_fullStr Synthesis of (+)-obtusenyne
title_full_unstemmed Synthesis of (+)-obtusenyne
title_short Synthesis of (+)-obtusenyne
title_sort synthesis of obtusenyne
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