mu-Hydroxyl trinuclear copper(II) clusters: reactivity and unusual   formation in the three-component synthesis of 1,2,3-triazoles in aqueous   media

doi:10.1039/c3dt32906b

CORC > 北京大学 > 化学与分子工程学院

	mu-Hydroxyl trinuclear copper(II) clusters: reactivity and unusual formation in the three-component synthesis of 1,2,3-triazoles in aqueous media
	Cai, Yuan-Bo ; Liang, Lei ; Zhang, Jing ; Sun, Hao-Ling ; Zhang, Jun-Long
刊名	dalton transactions
	2013
关键词	AZIDE-ALKYNE CYCLOADDITION SCHIFF BASE LIGAND CATALYTIC-ACTIVITY ONE-POT PEROXIDATIVE OXIDATION CRYSTAL-STRUCTURES AEROBIC OXIDATION CARBON NANOTUBES CU(II) COMPLEXES METAL-COMPLEXES
DOI	10.1039/c3dt32906b
英文摘要	mu-Hydroxyl trinuclear copper(II) compounds, with core structures closely resembling the central moieties in multicopper oxidases, have been extensively investigated and the importance of the prototypes in the oxidation of C-H bonds has been confirmed. In the course of study for the Cu(II) salens catalyzing the three-component (sodium azide, epoxide and non-activated terminal alkyne) 1,3-Huisgen cycloaddition, we observed the unusual formation of a mu-OH bridging trinuclear copper cluster supported by three (R, R)-N-(5-sulfonatosalicylidene)-1,2-diaminocyclohexane ligands (Cu-6) during the catalytic process. More interestingly, through comparative studies for the activity of the mononuclear copper(II) complexes (Cu-1 and Cu-5), we found that the mu-OH trinuclear copper(II) complex (Cu-6) was the active catalyst precursor. Through analysing the reaction intermediates we found that Cu(II) was partially reduced to Cu(I) and an adduct formed during catalytic process, which involves the alkyne coordinating to the Cu centers. This is the first example where a mu-OH trinuclear copper(II) complex has been isolated in copper catalyzed reactions other than catalytic oxidations, which provides a valuable clue to investigate that mu-OH copper clusters could be the intermediates in copper catalysed reactions in aqueous media.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000316300700024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Inorganic & Nuclear; SCI(E); EI; PubMed; 11; ARTICLE; 15; 5390-5400; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/149820]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Cai, Yuan-Bo,Liang, Lei,Zhang, Jing,et al. mu-Hydroxyl trinuclear copper(II) clusters: reactivity and unusual formation in the three-component synthesis of 1,2,3-triazoles in aqueous media[J]. dalton transactions,2013.
APA	Cai, Yuan-Bo,Liang, Lei,Zhang, Jing,Sun, Hao-Ling,&Zhang, Jun-Long.(2013).mu-Hydroxyl trinuclear copper(II) clusters: reactivity and unusual formation in the three-component synthesis of 1,2,3-triazoles in aqueous media.dalton transactions.
MLA	Cai, Yuan-Bo,et al."mu-Hydroxyl trinuclear copper(II) clusters: reactivity and unusual formation in the three-component synthesis of 1,2,3-triazoles in aqueous media".dalton transactions (2013).