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Article: Chiral C1-symmetric 2,2′:6′,2′′-terpyridine ligands: Synthesis, characterization, complexation with copper(II), rhodium(III) and ruthenium(II) ions and use of the complexes in catalytic cyclopropanation of styrene

TitleChiral C1-symmetric 2,2′:6′,2′′-terpyridine ligands: Synthesis, characterization, complexation with copper(II), rhodium(III) and ruthenium(II) ions and use of the complexes in catalytic cyclopropanation of styrene
Authors
KeywordsAsymmetric catalysis
Chiral terpyridine
Copper
Metal-catalyzed cyclopropanation
Rhodium
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/poly
Citation
Polyhedron, 2010, v. 29 n. 5, p. 1497-1507 How to Cite?
AbstractThree new optically pure C1-terpyridine ligands (L1–3) were prepared and the copper(II) complexes, of formula [Cu(L)Cl2], the rhodium(III) complexes, of formula [Rh(L)Cl3], and the ruthenium(II) complexes, of formula cis- or trans-[Ru(L)(X)Cl2] (X = DMSO or CO), were synthesized. Structures of a chiral C1-ligand, a copper complex, a rhodium complex and a ruthenium DMSO complex were analysed using X-ray crystal structure analysis. The copper, rhodium and ruthenium complexes were shown to be precursors of catalysts for cyclopropanation. Reaction of [Cu(L)Cl2], [Rh(L)Cl3] or cis- or trans-[Ru(L)(X)Cl2] with AgOTf converted the complex to catalyst, which in the case of trans-[Ru(L)(CO)Cl2] gave enantioselectivities of up to 67% ee for the cis-isomers of styrene cyclopropanes with t-butyl diazoacetate. Comparisons with C2-analog of copper, rhodium and ruthenium catalysts were made.
Persistent Identifierhttp://hdl.handle.net/10722/70220
ISSN
2015 Impact Factor: 2.108
2015 SCImago Journal Rankings: 0.592
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYeung, CTen_HK
dc.contributor.authorLee, WSen_HK
dc.contributor.authorTsang, CSen_HK
dc.contributor.authorYiu, SMen_HK
dc.contributor.authorWong, WTen_HK
dc.contributor.authorWong, WYen_HK
dc.contributor.authorKwong, HLen_HK
dc.date.accessioned2010-09-06T06:20:51Z-
dc.date.available2010-09-06T06:20:51Z-
dc.date.issued2010en_HK
dc.identifier.citationPolyhedron, 2010, v. 29 n. 5, p. 1497-1507en_HK
dc.identifier.issn0277-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70220-
dc.description.abstractThree new optically pure C1-terpyridine ligands (L1–3) were prepared and the copper(II) complexes, of formula [Cu(L)Cl2], the rhodium(III) complexes, of formula [Rh(L)Cl3], and the ruthenium(II) complexes, of formula cis- or trans-[Ru(L)(X)Cl2] (X = DMSO or CO), were synthesized. Structures of a chiral C1-ligand, a copper complex, a rhodium complex and a ruthenium DMSO complex were analysed using X-ray crystal structure analysis. The copper, rhodium and ruthenium complexes were shown to be precursors of catalysts for cyclopropanation. Reaction of [Cu(L)Cl2], [Rh(L)Cl3] or cis- or trans-[Ru(L)(X)Cl2] with AgOTf converted the complex to catalyst, which in the case of trans-[Ru(L)(CO)Cl2] gave enantioselectivities of up to 67% ee for the cis-isomers of styrene cyclopropanes with t-butyl diazoacetate. Comparisons with C2-analog of copper, rhodium and ruthenium catalysts were made.-
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/polyen_HK
dc.relation.ispartofPolyhedronen_HK
dc.subjectAsymmetric catalysis-
dc.subjectChiral terpyridine-
dc.subjectCopper-
dc.subjectMetal-catalyzed cyclopropanation-
dc.subjectRhodium-
dc.titleChiral C1-symmetric 2,2′:6′,2′′-terpyridine ligands: Synthesis, characterization, complexation with copper(II), rhodium(III) and ruthenium(II) ions and use of the complexes in catalytic cyclopropanation of styreneen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0277-5387&volume=29&spage=1497&epage=1507&date=2010&atitle=Chiral+C1-symmetric+2,2%27:6%27,2%27%27+-terpyridine+ligands:+Synthesis,+Characterization,+Complexation+with+Copper(II),+Rhodium(III)+and+Ruthenium(II)+ions+and+use+of the+Complexes+in+Catalytic+Cyclopropanation+of+Styreneen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1016/j.poly.2010.01.017-
dc.identifier.scopuseid_2-s2.0-77649271172-
dc.identifier.hkuros170197en_HK
dc.identifier.volume29-
dc.identifier.issue5-
dc.identifier.spage1497-
dc.identifier.epage1507-
dc.identifier.isiWOS:000276720400018-
dc.publisher.placeNetherlands-

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