One-Pot Synthesis of 9H-Indolo[3,2-c]pyrazolo[1,5-a]quinolines, 1H-Dipyrazolo[1,5-a:4′,3′-c]quinolines and 1H-Imidazo[4,5-c]pyrazolo[1,5-a]quinolines: Three New Heterocyclic Systems

被引：4
|
作者：
Zhang, Yiming [1 ]
Wang, Ren [1 ]
Shi, Zongjun [1 ]
Zhang, Wei [1 ]
机构：
[1] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
来源：
SYNTHESIS-STUTTGART | 2011年 / 11期
基金：
中国国家自然科学基金;
关键词：
photodehydrogenation; photocyclization; 9H-indolo[3,2-c]pyrazolo[1,5-a]quinolines; 1H-dipyrazolo[1,5-a:4 ',3 '-c]quinolines; 1H-imidazo[4,5-c]pyrazolo[1,5-a]quinolines; PHOTOCYCLIZATION; PHOTOCHEMISTRY; PHENANTHRENES; STILBENES;
D O I：
10.1055/s-0030-1260044
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
An efficient synthesis of three new kinds of heterocyclic systems, 9H-indolo[3,2-c]pyrazolo[1,5-a]quinolines, 1H-dipyrazolo[1,5-a:4',3'-c]quinolines and 1H-imidazo[4,5-c]pyrazolo[1,5-a]quinolines, has been achieved by the photochemical oxidative dehydrogenation and subsequent photocyclization and dehydrochlorination of 5-(2-chloro-1H-indol-3-yl)-, 5-(5-chloro-1H-pyrazol-4-yl)- and 5-(5-chloro-1H-imidazol-4-yl)-1-phenyl-4,5-dihydro-1H-pyrazolesin the presence of pyridine in acetone.
引用
收藏
页码：1711 / 1716
页数：6
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