beta-Diketones bearing electron-donating chromophores and a novel   beta-triketone: synthesis and reversible fluorescence behavior

doi:10.1016/j.tetlet.2006.02.019

CORC > 北京大学 > 化学与分子工程学院

	beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior
	Zhang, X ; Li, ZC ; Xu, N ; Li, KB ; Lin, S ; Lu, FZ ; Du, FS ; Li, FM
刊名	四面体通讯
	2006
关键词	AGGREGATION BEHAVIOR TAUTOMERIZATION POLYMERIZATION BISMALEIMIDES SPECTROSCOPY MALEIMIDES MONO
DOI	10.1016/j.tetlet.2006.02.019
英文摘要	Saturated and unsaturated beta-diketones bearing 4-N,N-dimethylaminophenyl substituent and a novel beta-triketone were synthesized. These beta-diketones exist in both cis-enol and keto forms in solution, and their relative contents were determined by H-1 NMR measurements. In contrast, for the beta-triketone, only enol form was observed in a solution. A strong fluorescence quenching was observed for unsaturated diketones as compared with the saturated ones. These beta-diketones displayed reversible photoinduced ketonization as revealed by UV-vis spectroscopy. The fluorescence emission of the saturated beta-diketones faded gradually during UV irradiation. The fluorescence emission of these saturated beta-diketones can thus be reversibly switched between the enol form 'ON' and the keto form 'OFF' based on keto-enol tautomerization. (c) 2006 Elsevier Ltd. All rights reserved.; Chemistry, Organic; SCI(E); 10; ARTICLE; 15; 2623-2626; 47
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/252477]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, X,Li, ZC,Xu, N,et al. beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior[J]. 四面体通讯,2006.
APA	Zhang, X.,Li, ZC.,Xu, N.,Li, KB.,Lin, S.,...&Li, FM.(2006).beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior.四面体通讯.
MLA	Zhang, X,et al."beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior".四面体通讯 (2006).