Environmentallybenign one-pot multicomponentsynthesis of different 1,4-dihydropyridine derivatives using montmorillonite K10 has been achieved. The montmorillonite K10-catalyzed reaction of aromatic aldehyde, malononitrile, substituted aniline, and diethyl acetylenedicarboxylate in H2O–EtOH allows to obtain structurally diverse 1,4-dihydropyridines in high yields. Possibility to recover and reuse
A grinding-induced catalyst- and solvent-free synthesis of highly functionalized 1,4-dihydropyridines via a domino multicomponent reaction
作者:Atul Kumar、Siddharth Sharma
DOI:10.1039/c1gc15223h
日期:——
A grinding-induced catalyst- and solvent-free domino multicomponentreaction for the synthesis of 1,4-dihydropyridines has been developed using aldehydes, amines, DEAD (diethyl acetylenedicarboxylate), and malononitrile/ethyl cyanoacetate. The synthesized 1,4-dihydropyridines were efficiently converted into novel tacrine analogs 7a–7e using micelle-promoted microwave irradiation.
Synthesis of Polysubstituted Dihydropyridines by Four-Component Reactions of Aromatic Aldehydes, Malononitrile, Arylamines, and Acetylenedicarboxylate
作者:Jing Sun、Er-Yan Xia、Qun Wu、Chao-Guo Yan
DOI:10.1021/ol101475b
日期:2010.8.20
procedure for the preparation of the polysubstituted dihydropyridines was developed through a unique four-component reaction of aromatic aldehydes, malononitrile, arylamines, and acetylenedicarboxylate in ethanol in the presence of triethylamine as a base promoter. This four-component reaction is atom-efficient, high-yielding, and applicable to a wide variety of four-component reactions.
In an effort for development of innovative biologically active agents, a sequence of 1,4‐dihydropyridine analogues was synthesized through the green synthetic method. In addition, all compounds were evaluated for their cytotoxic activities against three human cancer cell lines and mouse melanoma and figured out the most active compounds. Besides, promoter reusability, easy handling of the chemical