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  Patent History
  • Application
    PC T/CN2005000342 2005-03-18
  • Publication
    WO 2005087776 2005-09-22
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published patent: DIASTEREOSELECTIVE EPOXIDATION OF ALLYLICALLY SUBSTITUTED ALKENES USING METALLOPORPHYRIN CATALYSTS

TitleDIASTEREOSELECTIVE EPOXIDATION OF ALLYLICALLY SUBSTITUTED ALKENES USING METALLOPORPHYRIN CATALYSTS
Priority Date2004-03-18 US 10/553972P
Inventors
Issue Date2005
Citation
WO Published patent application WO 2005087776. World Intellectual Property Organization (WIPO), PatentScope, 2005 How to Cite?
AbstractDiastereoselective epoxidation of allylically substituted alkenes using metalloporphyrins as catalyst provides high trans-selectivities (i.e., trans- : cis-epoxide ratio). A diversity of cycloalkenes bearing different allylic substituents are shown to be efficiently epoxidized to afford the corresponding trans-epoxides with excellent trans-selectivities (up to > 98%) and good yields (up to 99%). Acyclic allylic alkenes bearing different allylic substituents are efficiently epoxidized to afford the corresponding erythro-epoxides with good erythro-selectivities. The metalloporphyrin-catalyzed reactions exhibit up to 20 times higher trans-selectivities than the conventional method using m-chloroperoxybenzoic acid as oxidant. Formulae (I), (II), (III), (IV), (V).
Persistent Identifierhttp://hdl.handle.net/10722/177102

 

DC FieldValueLanguage
dc.date.accessioned2012-11-30T08:39:07Z-
dc.date.available2012-11-30T08:39:07Z-
dc.date.issued2005-
dc.identifier.citationWO Published patent application WO 2005087776. World Intellectual Property Organization (WIPO), PatentScope, 2005en_HK
dc.identifier.urihttp://hdl.handle.net/10722/177102-
dc.description.abstractDiastereoselective epoxidation of allylically substituted alkenes using metalloporphyrins as catalyst provides high trans-selectivities (i.e., trans- : cis-epoxide ratio). A diversity of cycloalkenes bearing different allylic substituents are shown to be efficiently epoxidized to afford the corresponding trans-epoxides with excellent trans-selectivities (up to > 98%) and good yields (up to 99%). Acyclic allylic alkenes bearing different allylic substituents are efficiently epoxidized to afford the corresponding erythro-epoxides with good erythro-selectivities. The metalloporphyrin-catalyzed reactions exhibit up to 20 times higher trans-selectivities than the conventional method using m-chloroperoxybenzoic acid as oxidant. Formulae (I), (II), (III), (IV), (V).en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleDIASTEREOSELECTIVE EPOXIDATION OF ALLYLICALLY SUBSTITUTED ALKENES USING METALLOPORPHYRIN CATALYSTSen_HK
dc.typePatenten_US
dc.description.naturepublished_or_final_versionen_US
dc.contributor.inventorChe, CMen_HK
dc.contributor.inventorWong, Mankinen_HK
dc.contributor.inventorChan, Wingkeien_HK
patents.identifier.applicationPC T/CN2005000342en_HK
patents.description.assigneeUNIV HONG KONG [CN]en_HK
patents.description.countryWorld Intellectual Property Organization (WIPO)en_HK
patents.date.publication2005-09-22en_HK
patents.date.application2005-03-18en_HK
patents.date.priority2004-03-18 US 10/553972Pen_HK
patents.description.ccWOen_HK
patents.identifier.publicationWO 2005087776en_HK
patents.relation.familyCN 1934115 (A) 2007-03-21en_HK
patents.relation.familyUS 2005209470 (A1) 2005-09-22en_HK
patents.relation.familyUS 7482478 (B2) 2009-01-27en_HK
patents.relation.familyWO 2005087776 (A1) 2005-09-22en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

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