heterocyclic compound

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heterocyclic compound

[‚hed·ə·rō′sī·klik ¦käm‚pau̇nd]
(organic chemistry)
Compound in which the ring structure is a combination of more than one kind of atom; for example, pyridine, C5H5N.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Kheder, "Convenient synthesis of novel bis(hydrazone) and bis(indole) derivatives," Heterocycles, vol.
Thus, the chromophores attached to two fused rings of five-membered heteroaromatic, such as substituted triazolo[3,4-b]thiadiazole heterocycle as shown in Fig.
The approach is simple, efficient, and offers an alternative method for the synthesis of valuable heterocycles. Eco-friendliness, cost-effectiveness, no chromatographic purification, not using microwave irradiation or ultrasound waves are another notable characteristic of this reaction.
The chemistry of heterocycles is a very broad field, given the number of heterocyclic compounds listed, which continues to expand.
Wu and Beller describe heterocycles produced from double functionalized arenes that can avoid some of the difficulties using mono-functionalized arenes in drug development.
New alkaloids from Pancratium maritimum L., Heterocycles 27, 2833-2838.
The drugs of different functionality were selected for the study, from the category of potentially difficult degradable pollutants of various structures: aromatic rings, condensed aromatic fragments or heterocycles are the structural elements for the majority of these structures.
Chemists review the current state of the formation of copper-mediated carbon-heteroatom bonds and carbon-carbon bonds, and applications of copper-catalyzed cross-coupling reactions in heterocycles, natural products processes, and sustainable chemistry.
Our Continuous efforts for the synthesis of various novel heterocycles for biological interest using various catalyst and green approaches [22-26] and the remarkable pharmaceutical importance of fused hydrazide and pyrazole derivatives, prompted us to design and synthesize a scaffold 4,5,6,7 tetrahydro-2H-indazole-3-carbohydrazide using water as a green solvent.
Chalcones (1,3-diphenyl-2-propen-1-ones) [1] are known to possess a range of important biological activities, such as antibacterial [2], antifungal [3], antileishmanial [4], antimalarial [4], antifilarial [5] anti-inflammatory [6-8], antiprotozoal (antileishmanial and antipanosomal) [9], antimicrobial [10-13], larvicidal [14], anticonvulsant [15], anti-HIV [16], antitumor [17], and anticancer [18] activities, and they could be readily transformed into varieties of other compounds, many of which are biologically active heterocycles [19, 20].
Heterocycles constitute one of the major areas of organic chemistry and play important roles in drug discovery.
Stanovnik, "A simple synthesis of aplysinopsin analogues by dimethylamine substitution in N,N (dimethylamino)methylidene derivatives of five-membered heterocycles," Tetrahedron, vol.