Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8290
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dc.contributor.authorMelo, Teresa M. V. D. Pinho e-
dc.contributor.authorCardoso, Ana L.-
dc.contributor.authorGonsalves, António M. d'A. Rocha-
dc.contributor.authorPessoa, João Costa-
dc.contributor.authorPaixão, José A.-
dc.contributor.authorBeja, Ana M.-
dc.date.accessioned2009-02-09T14:30:22Z-
dc.date.available2009-02-09T14:30:22Z-
dc.date.issued2004en_US
dc.identifier.citationEuropean Journal of Organic Chemistry. 2004:23 (2004) 4830-4839en_US
dc.identifier.urihttp://hdl.handle.net/10316/8290-
dc.description.abstractWittig reactions between 10-(phenylsulfonyl)isobornyl (triphenylphosphoranylidene)acetates (1 and 6) and ketenes resulted in asymmetric induction, with the selective synthesis of allenes with axial chirality. Use of the (1R)-(-)-10-(phenylsulfonyl)isoborneol unit allows the synthesis of allenes with S configuration, whereas use of the (1S)-(+)-10-(phenylsulfonyl)isoborneol unit produces allenes with R configuration. The structure of (1R)-(-)-10-(phenylsulfonyl)isobornyl (S)-5,5-dimethylhexa-2,3-dienoate (2e) was determined by X-ray crystallography. Chirooptical studies of the allenic esters were carried out, confirming that two sets of enantiomeric derivatives were obtained. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)en_US
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleNovel Asymmetric Wittig Reaction: Synthesis of Chiral Allenic Estersen_US
dc.typearticleen_US
dc.identifier.doi10.1002/ejoc.200400413en_US
uc.controloAutoridadeSim-
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextCom Texto completo-
crisitem.author.deptFaculty of Pharmacy-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCFisUC – Center for Physics of the University of Coimbra-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.orcid0000-0003-3256-4954-
crisitem.author.orcid0000-0003-0551-7255-
crisitem.author.orcid0000-0001-9987-7301-
crisitem.author.orcid0000-0003-4634-7395-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
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