Showing papers in "Journal of Heterocyclic Chemistry in 2010"

TL;DR: Indole has a benzene ring and pyrrole ring sharing one double bond and is a heterocyclic system with 10 electrons from four double bonds and the lone pair from the nitrogen atom as mentioned in this paper.

TL;DR: Silica-bonded S-sulfonic acid (SBSSA) has been found to be an efficient catalyst for the synthesis of 1,8-dioxo-decahydroacridines and 1, 8-Dioxo -octahydroxanthenes in excellent yields as mentioned in this paper.

TL;DR: In this paper, the potential utilization of microwaves as an energy source for heterocyclic synthesis was investigated using condensation of 3-acetylcoumarin with aromatic and hetero-aromatic aldehydes to afford the corresponding aromatic chalcones (2a−j) and heteraromatic chalchanes (3a−e and 4a-e), respectively, in good to excellent yield within 1-3 min.

TL;DR: A general and versatile one-pot three-component procedure for the selective synthesis of mono substituted quinazolin-4(3H)-ones and 2,3-dihydroquinazolin -4(1H-ones was described.

TL;DR: In this article, 5.5-Aryl-1H-tetrazoles (II) were obtained from aromatic nitriles and sodium azide in the presence of montmorillonite K-10 or kaolin as catalyst.

TL;DR: In this paper, the authors describe the title method as "simplicity of operation, short reaction times, and good substrate generality" and show that it has good performance.

TL;DR: In this article, the authors report some recent improvements of the classical synthetic methods and of some non-classical methods to obtain simple oxygenated chromones and summarize the strategies for synthesis of heterocycle analogs containing phosphorus, nitrogen, and sulfur.

TL;DR: In this article, an efficient one-pot, solvent-free method is reported for the synthesis of 2-phenyl-2,3-dihydroquinazoline-4(1H)-one as well as its o-Cl, o-OMe, m-Br, mNO2, p-OH,p-NO2.

TL;DR: Dibromoisocyanuric acid is a more efficient reagent for the dibromination of the title pyrazole derivatives than NBS as discussed by the authors, and is used in the synthesis of pyrazoles.

TL;DR: In this article, the title compounds (IV and VI) were prepared in aqueous media in a four-component one-pot procedure and showed significant antibacterial activity in vitro.

TL;DR: A clean, one-pot and three-component synthesis of new spiro[chromeno[2,3d]pyrimidine-5,3-indoline]-2′,6(7H)-diones was reported in this paper.

TL;DR: A novel one-pot reaction between barbituric acids, isatins, and β-naphthol affords the previously unknown spiro compounds (IV) as mentioned in this paper.

TL;DR: In this article, a one-pot method for the synthesis of N-(1,3-diphenyl-1H-pyrazol-5-yl) amides was developed by cyclization of benzoylacetonitrile and phenylhydrazine in neat condition followed by acylation.

TL;DR: In this paper, an efficient three-component, one-pot synthesis of spirooxindoles is described, based on a three-stage one-stage approach. But the synthesis is not scalable.

TL;DR: In this paper, the synthesis of 3-substituted 1,2,3-triazolo[1,5a]quinazolinones in high yields was performed via anionic hetero-domino reaction of appropriate substituted 2-azidobenzoates prepared from isatines and acetonitriles activated by 1,3thiazole, 1.3-benzothiazole and 1.4-oxadiazole rings.

TL;DR: In this paper, a simple and green one-pot cyclocondensation reaction was presented by using an inexpensive and easily available catalyst, which was shown to be effective in the presence of a single-hop catalyst.

TL;DR: Amidoalkyl naphthol derivatives have been synthesized in good yields in a one-pot condensation of β- naphTHol, aromatic aldehydes and urea in presence of TMSCl/NaI at room temperature as discussed by the authors.

TL;DR: Bizzarri et al. as discussed by the authors published a paper on bioinformatics with a focus on the role of the human brain in the development of biomedical information and proposed a method for the identification of the most important genes.

TL;DR: In this article, a review summarizes the methods for preparing 1H-benzimidazole-2-acetonitriles and their reactions in the past years, some of which have been applied to the synthesis of biologically active molecules.

TL;DR: In this article, the fungicidal activity of a series of novel pyrazole derivatives (VI) was reported, and the effect of these derivatives on the fungicide properties of various species was investigated.

TL;DR: Some of the novel heteropolycyclics are found to be promising bronchodilatory and oxytocic agents having activities comparable to those of the alkaloid vasicine and its analogues as discussed by the authors.

TL;DR: Methods developed to-date for the synthesis of 2-arylquinolin-4(1H)-ones and their N-alkylated and O-alkyated derivatives are described.

TL;DR: In this paper, Synthesized com-pounds were investigated for complexation and biological activity properties, and best results in biological activity studies were observed for antioxidant activity, which was observed for synthetically synthesized com pounds.