Multicomponent reactions for the synthesis of new 3′-indolyl substituted heterocycles under microwave irradiation
作者:Song-Lei Zhu、Shun-Jun Ji、Kai Zhao、Yu Liu
DOI:10.1016/j.tetlet.2008.02.101
日期:2008.4
(3′-indolyl)benzo[h]quinoline derivatives were synthesized via one-pot multicomponent reactions of aldehydes, 3-cyanoacetyl indoles with 5-aminopyrazol or naphthylamine undermicrowaveirradiation. Particularly valuable features of this method include high yields of products, broad substrate scope, short reaction time and straightforward procedure.
通过醛,3-氰基乙酰基吲哚与5-甲基苯的一锅多组分反应,合成了一系列多取代的(3'-吲哚基)吡唑并[3,4- b ]吡啶和(3'-吲哚基)苯并[ h ]喹啉衍生物。微波辐射下的氨基吡唑或萘胺。该方法特别有价值的特征包括高产量的产品,广泛的底物范围,较短的反应时间和简单的操作步骤。
Iodine-catalyzed oxidative annulation of 3-cyanoacetylindoles with benzylamines: facile access to 5-(3-indolyl)oxazoles
作者:Xiaozu Liu、Yuxiang Zhou、Guojun Chen、Zhongqin Yang、Qin Li、Peijun Liu
DOI:10.1039/c8ob00833g
日期:——
An iodine-catalyzedoxidative annulation of 3-cyanoacetylindoles with benzylamines has been developed. This reaction enables the convenientsynthesis of a variety of 5-(3-indolyl)oxazoles undermildconditions with broad functional group compatibility.
Multicomponent approaches to 8-carboxylnaphthyl-functionalized pyrazolo[3,4-b]pyridine derivatives
作者:Yan Hao、Xiao-Ping Xu、Tao Chen、Li-Li Zhao、Shun-Jun Ji
DOI:10.1039/c1ob06624b
日期:——
and novel protocol for the efficient synthesis of a series of 8-carboxylnaphthyl functionalized pyrazolo[3,4-b]pyridine derivatives was developed through a one-pot, three-component reaction involving acenaphthylene-1,2-dione and 1H-pyrazol-5-amine in acetic acid medium. The reaction represents the first facile conversion of acenaphthenequinone to naphthoic acid via C–C bond cleavage without need for
Facile and efficient synthesis of a new class of bis(3′-indolyl)pyridine derivatives via one-pot multicomponent reactions
作者:Song-Lei Zhu、Shun-Jun Ji、Xiao-Ming Su、Chang Sun、Yu Liu
DOI:10.1016/j.tetlet.2008.01.054
日期:2008.3
4-aryl-3,5-dicyano-2,6-di(3′-indolyl)pyridine derivatives were synthesized via a one-pot multicomponentreaction of aromatic aldehydes, 3-cyanoacetyl indoles, and ammonium acetate under microwave irradiation. Particularly valuable features of this method include high yields of products, broad substrate scope, short reaction time, and straightforward procedure.
A convergent construction of 1,4-dihydropyridine scaffold containing indole fragment
作者:Tao Chen、Xiao-Ping Xu、Hai-Feng Liu、Shun-Jun Ji
DOI:10.1016/j.tet.2011.05.065
日期:2011.7
Accompanying with the construction of 1,4-dihydropyridine scaffold, indol-3-yl-5-oxo-1,4,5,6,7,8-hexahydroquinoline, and indol-3-yl-1,4-dihydropyridine derivatives were facilely synthesized through three-component reactions of aromatic aldehydes, 3-cyanoacetyl indoles with 3-amino-2-enones in the presence of ammonium acetate. The 1,4-dihydropyridine core structure can be efficiently aromatized in the presence of stoichiometric 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). This chemistry provides an efficient and promising synthetic strategy to diversity-oriented construction of unaromatized and aromatized desired products. The advantages of the present protocol are atom-economy, simple work-up and easy purification of products by non-chromatographic methods. (C) 2011 Elsevier Ltd. All rights reserved.