Reactions of 5-amino-1,2-azoles with aromatic and heterocyclic o-chloroaldehydes: [1+1] versus [2+1] cyclocondensation
作者:Michael A Abramov、Erik Ceulemans、Carine Jackers、Mark Van der Auweraer、Wim Dehaen
DOI:10.1016/s0040-4020(01)00917-6
日期:2001.10
5-Amino-1,2-azoles react with aromatic and heterocyclic aldehydes, having reactive halogen in ortho-position, and yield pyrazolo[3,4-b;2,3-b]quinolines, bispyrazolo[3,4-b;4′,3′-e]pyridines and their heterocyclic analogs, respectively as [1+1] or [2+1] condensation products. The fluorescent properties of the synthesized compounds are discussed.
5-氨基-1,2-唑与芳族和杂环醛反应,在邻位具有反应性卤素,并生成吡唑并[3,4- b ; 2,3- b ]喹啉,双吡唑并[3,4 - b ; 4',3'- e ]吡啶及其杂环类似物分别为[1 + 1]或[2 + 1]缩合产物。讨论了合成化合物的荧光性质。