File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Epoxide ring opening catalysed by imidochromium complexes

TitleEpoxide ring opening catalysed by imidochromium complexes
Authors
Issue Date1997
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
Citation
Journal Of The Chemical Society - Dalton Transactions, 1997 n. 19, p. 3525-3529 How to Cite?
Abstracttert-Butylimidochromium complexes catalysed ring opening of epoxides by SiMe3(N3) to give azidohydrins in good yields. The proposed mechanism for the chromium-mediated epoxide azidolysis involves the intermediacy of a chromium-azide species which delivers nucleophilic azide to the epoxide substrate. The azido complexes [{Cr(NBut)2Cl}2(μ-N3) 2] 1 and [Cr(ButN=NN=NSiMe3)(N3)Cl2] 2 have been isolated in the reactions of SiMe3(N3) with [Cr(NBut)2Cl2] and [Cr(NBut)Cl3(dme)] (dme = 1,2-dimethoxyethane), respectively. The structure of complex 1 has been established by X-ray crystallography. The mean Cr-N (imide) and Cr-N (azide) distances are 1.605 and 2.061 Å, respectively. Reaction of [Cr(NBut)Cl3(thf)2] (thf = tetrahydrofuran) with (S,S)-diop {4,5-[bis(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxolane} gave the dimeric complex [{Cr(NBut)Cl3}2{μ(S,S)-diop}], which has been characterised by X-ray crystallography. The Cr-N and Cr-P distances are 1.593(9) and 2.449(4) Å, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/68912
ISSN
1999 Impact Factor: 2.31
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLeung, WHen_HK
dc.contributor.authorWu, MCen_HK
dc.contributor.authorChim, JLCen_HK
dc.contributor.authorYu, MTen_HK
dc.contributor.authorHou, HWen_HK
dc.contributor.authorYeung, LLen_HK
dc.contributor.authorWong, WTen_HK
dc.contributor.authorWang, Yen_HK
dc.date.accessioned2010-09-06T06:08:51Z-
dc.date.available2010-09-06T06:08:51Z-
dc.date.issued1997en_HK
dc.identifier.citationJournal Of The Chemical Society - Dalton Transactions, 1997 n. 19, p. 3525-3529en_HK
dc.identifier.issn0300-9246en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68912-
dc.description.abstracttert-Butylimidochromium complexes catalysed ring opening of epoxides by SiMe3(N3) to give azidohydrins in good yields. The proposed mechanism for the chromium-mediated epoxide azidolysis involves the intermediacy of a chromium-azide species which delivers nucleophilic azide to the epoxide substrate. The azido complexes [{Cr(NBut)2Cl}2(μ-N3) 2] 1 and [Cr(ButN=NN=NSiMe3)(N3)Cl2] 2 have been isolated in the reactions of SiMe3(N3) with [Cr(NBut)2Cl2] and [Cr(NBut)Cl3(dme)] (dme = 1,2-dimethoxyethane), respectively. The structure of complex 1 has been established by X-ray crystallography. The mean Cr-N (imide) and Cr-N (azide) distances are 1.605 and 2.061 Å, respectively. Reaction of [Cr(NBut)Cl3(thf)2] (thf = tetrahydrofuran) with (S,S)-diop {4,5-[bis(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxolane} gave the dimeric complex [{Cr(NBut)Cl3}2{μ(S,S)-diop}], which has been characterised by X-ray crystallography. The Cr-N and Cr-P distances are 1.593(9) and 2.449(4) Å, respectively.en_HK
dc.languageengen_HK
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/daltonen_HK
dc.relation.ispartofJournal of the Chemical Society - Dalton Transactionsen_HK
dc.titleEpoxide ring opening catalysed by imidochromium complexesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1472-7773&volume=&spage=3525&epage=3529&date=1997&atitle=Epoxide+ring+opening+catalysed+by+imidochromium+complexesen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/A700380C-
dc.identifier.scopuseid_2-s2.0-33749113613en_HK
dc.identifier.hkuros31379en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33749113613&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.issue19en_HK
dc.identifier.spage3525en_HK
dc.identifier.epage3529en_HK
dc.identifier.isiWOS:A1997YB26400024-
dc.identifier.scopusauthoridLeung, WH=7201504510en_HK
dc.identifier.scopusauthoridWu, MC=7405595282en_HK
dc.identifier.scopusauthoridChim, JLC=6602609380en_HK
dc.identifier.scopusauthoridYu, MT=7404272894en_HK
dc.identifier.scopusauthoridHou, HW=7202320199en_HK
dc.identifier.scopusauthoridYeung, LL=16168151500en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK
dc.identifier.scopusauthoridWang, Y=36072665800en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats