All the non-H atoms of the title compound, C11H 10ClNO2, are roughly coplanar (r.m.s. deviation = 0.058 Å). In the crystal, adjacent mol-ecules are linked by an O-H⋯N hydrogen bond, generating chains running along the a axis.

Nawaz Khan F

Department of Chemistry

School of Advanced Sciences

Vellore Campus

Mohana Roopan S

Hathwar V.R

Ng S.W.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

2-Chloro-3-hydroxymethyl-6-methoxyquinoline

Acta Crystallographica Section E Structure Reports Online

Abstract: The 2-chloro-3-formyl quinolines 1, were chemoselectivity and effectively converted into their corresponding 2-chloroquinolinyl-4-quinolinones 3 through Knoevenagel condensation/aza-Michael addition utilizing TiO2 nanoparticles. The Sonogashira coupling of 2-chloroquinolinyl moiety of the quinolinone, 3 gave unprecedented cyclised products 1,6-naphthyridines, 5 through cascade reaction in good yields and purity. Graphical Abstract: [Figure not available: see fulltext.] © 2017, Springer Science+Business Media New York.

Catalysis Letters

TiO2 Nanoparticles Catalyzed Chemoselective Synthesis of 2-Chloroquinolinyl-4-quinolinones and their Intramolecular Cyclization through Palladium Catalyzed Sonogashira Coupling Reaction

Dihydroquinazolinones is an important core structure reported with a wide variety of pharmacological activities. They are capable of undergoing various transformations because of its reactivity towards various reagents. The synthetic strategies for the functionalization and derivatization of the nucleus were explained. The diversified pharmacological actions of this moiety were illustrated through various biochemical pathways. The structural-activity relationship study of dihydroquinazolinones anticipated the relationship between the various substituents and its role in the pharmacological action. The main objective of this review is to summarize the importance of dihydroquinazolinones in the field of chemical biology.

European Journal of Medicinal Chemistry

Synthetic strategy with representation on mechanistic pathway for the therapeutic applications of dihydroquinazolinones

The main aim of this study is to investigate the interaction of 7-fluoro-2,2-dimethyl-2,3-dihydroquinazolin-4(1H)-one with lysozyme through various spectrophotometric studies. The graph such as Stern-Volmer plot, modified Stern Volmer plot, double logarithmic plot and Van't Hoff plot were plotted to determine the various parameters essential for predicting the interaction. The interaction of the ligand with the protein was further confirmed by circular dichroism and NMR study. The molecular docking was performed and the results obtained were correlated with the other studies. The importance of fluorine was justified through the prediction of pKa values and the possible metabolic pathway using the in silico tools. In addition, the cytotoxicity of the compound was carried out using HeLa cancer cell.

Journal of Photochemistry and Photobiology B: Biology

Importance of fluorine in 2,3-dihydroquinazolinone and its interaction study with lysozyme

A conventional approach has been used to synthesis Indole fused acridine, 4a–e. In this paper to achieve the target molecule, 4 the reaction was performed via two steps. In step 1, there was a reaction between Carbazolone, 1 and benzophenone, 2 to get dihydroindoloacridine, 3. In step 2, compound, 3 was treated with 5{\%} Palladium/Carbon in the presence of diphenyl ether for 5 h to give a dark brown product, 4. The column chromatography was used to purify final product, 4. All the synthesized compounds such as 3 and 4 were characterized by melting point, FTIR, 1H NMR and Mass spectra. Further to check the purity of the compounds it was subjected to CHN analyzer. The target molecules such as 3 and 4 were screened for antimicrobial studies against bacteria such as Bacillus subtilis (B. subtilis), Staphylococcus aureus (S. aureus), Klebsiella pneumonia (K. pneumonia), Salmonella typhi (S. typhi); and fungi like Aspergillus niger (A. niger), Aspergillus fumigatus (A. fumigatus). The obtained results clearly proves that the target molecules shown reasonable activity against K. pneumonia and A. niger. Further the compounds were screened for free radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH). The free radical scavenging property was performed using UV–Visible spectroscopy. The results were compared with the standard BHT (Butylated Hydroxy Toluene). Compounds, 4a and 4e were shown higher percentage of inhibition when compare to the standard. The result confirms that further research on indoloacridine will leads effective drug to the market.

Application of UV–Vis spectrophotometric process for the assessment of indoloacridines as free radical scavenger

A simple, efficient and rapid method for clay-catalyzed Knoevenagel condensation of heterocyclic aldehydes with active methylene compound under reflux condition is reported. This protocol offers high yield, shorter time and simple work procedure. The protocol does not require column chromatography for purification, and the process is environmentally benign. © 2014 Springer Science+Business Media.

Journal	Acta Crystallographica Section E Structure Reports Online
Publisher	International Union of Crystallography (IUCr)
ISSN	16005368
Open Access	0