15131-80-3Relevant articles and documents
Hydroxychalcone dyes that serve as color indicators for pH and fluoride ions
Bu, Ren,Du, Yanqing,Eerdun, Chaolu,Hu, Mixia,Liang, Fengying,Tsuda, Akihiko,Wang, Meiling
, p. 37463 - 37472 (2020)
A chalcone, which is composed of two aromatic rings bridged by an α,β-unsaturated carbonyl group, exhibits a variety of biological activities. With an objective to develop a novel chalcone-based functional dye, we have synthesized a chalcone diol CLN1, bearing two OH groups at the 2-positions on both phenyl rings, as well as reference compounds CLN2-6, and found that it serves as color indicators for pH and fluoride ions. CLN1showed a vivid color change from colorless to yellow (halochromism) in water at pH ≥ 10. Furthermore, it presented a selective color change from colorless to red upon the addition of TBAF in an organic solvent such as CH3CN. CLN1provided a strong red-shifted absorption band in the visible region under alkaline conditions in water and upon the addition of TBAF in CH3CN. The absorption spectral study together with TD-DFT calculations and X-ray crystallographic analysis revealed that the characteristic π-resonant structures of CLN1caused by the ionization or OH-F?interactions and the planar conformation due to its intramolecular hydrogen bonding may provide a strong charge transfer (CT) absorption in the visible region.
Effect of OH substitution in 3-benzylchroman-4-ones: crystallographic, CSD, DFT, FTIR, Hirshfeld surface, and energy framework analysis
Abdul Salam, Abdul Ajees,Bankapur, Aseefhali,Chidangil, Santhosh,Kumar S., Madan,Simon, Lalitha,Sinha, Rajeev K.,T., Shilpa
, p. 20123 - 20136 (2021)
3-Benzylchroman-4-ones (homoisoflavanones) are oxygen-containing heterocycles with a sixteen-carbon skeleton. They belong to the class of naturally occurring polyphenolic flavonoids with limited occurrence in nature and possess anti-inflammatory, antibact
Novel isoniazid-spirooxindole derivatives: design, synthesis, biological evaluation, in silico ADMET prediction and computational studies
Bhoi, Manoj N.,Borad, Mayuri A.,Jethava, Divya J.,Pandya, Himanshu A.,Patel, Chirag N.,Patel, Hitesh D.
, (2020/07/21)
In the present scenario, the Synthesis of new and desired antimycobacterial agent has an eternal demand to resist Mycobacterium tuberculosis (MTB). The design and identification of new molecules for the treatment of tuberculosis is an important task in organic as well as medicinal chemistry research. In the present study, we have reported the combination of the desired compound using two versatile and significant moieties, isoniazid and spirooxindole derivatives. A series of novel isoniazid-spirooxindole hybrid molecules (6a-6ao) were designed, synthesized, and well-characterized by various spectroscopic methods. We have evaluated for their in vitro antimycobacterial activity against Mycobacterium tuberculosis H37Rv (MTB) strain and MDR-TB. Among them, Compound 6ab was found to be the most effective compare to other compounds. ADMET-related descriptors were to be calculated of all the compounds to predict the pharmacokinetic properties for the selection of the effective and bioavailable compounds. In addition, molecular docking and molecular dynamics studies reveal that the binding modes of all the compounds in the active site of isoniazid-resistant enoyl-ACP(COA) reductase, which helped to establish a structural basis of inhibition of Mycobacterium tuberculosis.