One-Pot Multicomponent Reactions for the Efficient Synthesis of Highly Functionalized Dihydropyridines
作者:Suman Pal、Lokman H. Choudhury、Tasneem Parvin
DOI:10.1080/00397911.2011.618283
日期:2013.3.1
atom-economic, one-pot protocol has been developed for the synthesis of highlyfunctionalized dihydropyridines via four-component reactions of aromatic aldehydes, arylamines, malononitrile, and dimethylacetylenedicarboxylate in the presence of sodium hydroxide in ethanol. This domino reaction proceeded smoothly in good to excellent yields and offered several advantages, including short reaction time, simple
PEG-mediated one-pot multicomponent reactions for the efficient synthesis of functionalized dihydropyridines and their functional group dependent DNA cleavage activity
作者:Suman Pal、Vandana Singh、Prolay Das、Lokman H. Choudhury
DOI:10.1016/j.bioorg.2013.03.003
日期:2013.6
Polyethylene glycol (PEG) has been found to be an inexpensive, non-toxic and useful medium for the one pot synthesis of highly functionalized dihydropyridines using multicomponent reactions (MCRs) at room temperature under catalyst free conditions. The notable features of this protocol are: mild reaction condition, applicability to wide range of substrates, reusability of the PEG and good yields. The interaction of the synthesized compounds with pUC19 plasmid DNA was also analyzed. Some of the synthesized compounds showed interesting functional group dependent nuclease activity for plasmid DNA cleavage under physiological conditions. (C) 2013 Elsevier Inc. All rights reserved.
KF/Al<sub>2</sub>O<sub>3</sub>Mediated Multicomponent Reactions for the Efficient Synthesis of Highly Substituted Dihydropyridines
作者:Suman Pal、Md. Nasim Khan、Lokman H. Choudhury
DOI:10.1002/jhet.1914
日期:2014.8
KF/Al2O3 was found to be an efficient solid supported catalyst for the facile access of highlysubstituteddihydropyridine derivatives from the multicomponentreaction of aromatic aldehydes, amines, malononitrile, and alkylacetylenedicarboxylates. The notable advantages of this protocol are reusable catalyst, good yields, applicable to a wide range of substrates for the synthesis of pharmacologically interesting