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Article: Titanium and ruthenium binaphthyl Schiff base complexes as catalysts for asymmetric trimethylsilylcyanation of aldehydes
Title | Titanium and ruthenium binaphthyl Schiff base complexes as catalysts for asymmetric trimethylsilylcyanation of aldehydes |
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Authors | |
Issue Date | 1999 |
Publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton |
Citation | Journal Of The Chemical Society - Dalton Transactions, 1999 n. 18, p. 3303-3309 How to Cite? |
Abstract | Investigations on the catalytic behaviour of titanium complexes formed in situ from Ti(OPri)4 and a variety of Schiff bases, mainly the binaphthyl derivatives 2,2′-bis(3-R1-5-R 2-2-hydroxybenzylideneamino)-1,1′-binaphthyl, toward the asymmetric trimethylsilylcyanation of some aromatic and aliphatic aldehydes demonstrated that the titanium complex of the binaphthyl Schiff base with R1 = R2 = But is one of the best catalysts for such a process, with an enantiomeric excess (e.e.) as high as 96% obtained for m-tolualdehyde. Crystal structure determination of a nitrosylruthenium complex, [RuII(L)(NO)Cl] (L is the dianion of the binaphthyl Schiff base with R1 = R2 = Cl), revealed that the complex assumes a cis-β configuration with the binaphthyl moiety having a dihedral angle of 70.2°. After treatment with AgPF6, the ruthenium complex also exhibited a good catalytic property for the trimethylsilylcyanation of benzaldehyde albeit with a lower e.e. (24%). © The Royal Society of Chemistry 1999. |
Persistent Identifier | http://hdl.handle.net/10722/70061 |
ISSN | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhou, XG | en_HK |
dc.contributor.author | Huang, JS | en_HK |
dc.contributor.author | Ko, PH | en_HK |
dc.contributor.author | Cheung, KK | en_HK |
dc.contributor.author | Che, CM | en_HK |
dc.date.accessioned | 2010-09-06T06:19:21Z | - |
dc.date.available | 2010-09-06T06:19:21Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | Journal Of The Chemical Society - Dalton Transactions, 1999 n. 18, p. 3303-3309 | en_HK |
dc.identifier.issn | 0300-9246 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/70061 | - |
dc.description.abstract | Investigations on the catalytic behaviour of titanium complexes formed in situ from Ti(OPri)4 and a variety of Schiff bases, mainly the binaphthyl derivatives 2,2′-bis(3-R1-5-R 2-2-hydroxybenzylideneamino)-1,1′-binaphthyl, toward the asymmetric trimethylsilylcyanation of some aromatic and aliphatic aldehydes demonstrated that the titanium complex of the binaphthyl Schiff base with R1 = R2 = But is one of the best catalysts for such a process, with an enantiomeric excess (e.e.) as high as 96% obtained for m-tolualdehyde. Crystal structure determination of a nitrosylruthenium complex, [RuII(L)(NO)Cl] (L is the dianion of the binaphthyl Schiff base with R1 = R2 = Cl), revealed that the complex assumes a cis-β configuration with the binaphthyl moiety having a dihedral angle of 70.2°. After treatment with AgPF6, the ruthenium complex also exhibited a good catalytic property for the trimethylsilylcyanation of benzaldehyde albeit with a lower e.e. (24%). © The Royal Society of Chemistry 1999. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton | en_HK |
dc.relation.ispartof | Journal of the Chemical Society - Dalton Transactions | en_HK |
dc.title | Titanium and ruthenium binaphthyl Schiff base complexes as catalysts for asymmetric trimethylsilylcyanation of aldehydes | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1472-7773&volume=&spage=3303&epage=3309&date=1999&atitle=Titanium+and+ruthenium+binaphthyl+Schiff+base+complexes+as+catalysts+for+asymmetric+trimethylsilylcyanation+of+aldehydes | en_HK |
dc.identifier.email | Huang, JS:jshuang@hkucc.hku.hk | en_HK |
dc.identifier.email | Che, CM:cmche@hku.hk | en_HK |
dc.identifier.authority | Huang, JS=rp00709 | en_HK |
dc.identifier.authority | Che, CM=rp00670 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/A904330F | - |
dc.identifier.scopus | eid_2-s2.0-2042497231 | en_HK |
dc.identifier.hkuros | 50021 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-2042497231&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.issue | 18 | en_HK |
dc.identifier.spage | 3303 | en_HK |
dc.identifier.epage | 3309 | en_HK |
dc.identifier.isi | WOS:000082425600025 | - |
dc.identifier.scopusauthorid | Zhou, XG=7410094013 | en_HK |
dc.identifier.scopusauthorid | Huang, JS=7407192639 | en_HK |
dc.identifier.scopusauthorid | Ko, PH=14634145100 | en_HK |
dc.identifier.scopusauthorid | Cheung, KK=7402406613 | en_HK |
dc.identifier.scopusauthorid | Che, CM=7102442791 | en_HK |
dc.identifier.issnl | 0300-9246 | - |