A comparative study between heterogeneous stannous chloride loaded silica nanoparticles and a homogeneous stannous chloride catalyst in the synthesis of 5-substituted 1H-tetrazole
Heterogeneous SnCl2–nano-SiO2 efficiently catalyzed 5-substituted 1H-tetrazole synthesis with excellent yield. The catalyst was characterized by using FT-IR, TGA, TEM, and EDX. It is widely applicable on aliphatic, aromatic, heteroaromatic and sterically hindered nitriles with five time recyclability. Being simple and an economically viable approach for the synthesis of SnCl2–nano-SiO2 are additional
Choline chloride–ZnCl<sub>2</sub>: Recyclable and efficient deep eutectic solvent for the [2+3] cycloaddition reaction of organic nitriles with sodium azide
作者:Swapnil A. Padvi、Dipak S. Dalal
DOI:10.1080/00397911.2017.1285033
日期:2017.4.18
time choline chloride–zinc chloride based deep eutectic solvent is a green and efficient reaction medium for the [2+3] cycloaddition reaction of organic nitriles with sodium azide to afford the corresponding 5-substituted 1H-tetrazoles. The present method provides an environment-friendly route, short reaction times with excellent yields, safe process, and simple workup which make this method an attractive
The present invention provides compounds of Formula I or Formula II, or the pharmaceutically acceptable salts or prodrugs thereof, pharmaceutical compositions comprising compounds or Formula I or Formula II, and methods for treating neurological disorders and neurodegenerative diseases, particularly migraine.
Highly efficient synthesis of 1- and 5-substituted 1H-tetrazoles using chitosan derived magnetic ionic liquid as a recyclable biopolymer-supported catalyst
作者:Ali Khalafi-Nezhad、Somayeh Mohammadi
DOI:10.1039/c3ra23107k
日期:——
A general method for the efficient synthesis of 1- and 5-substituted1H-tetrazoles from nitriles and amines is described using chitosan supported magnetic ionic liquid nanoparticles (CSMIL) as a novel heterogeneous catalyst. The application of this catalyst allows the synthesis of a variety of tetrazoles in high yields at low temperature. This new magnetic catalyst has been prepared from chitosan (the
Synthesis, molecular docking and xanthine oxidase inhibitory activity of 5-aryl-1H-tetrazoles
作者:Itrat Fatima、Humaira Zafar、Khalid Mohammed Khan、Syed Muhammad Saad、Sumaira Javaid、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.bioorg.2018.04.021
日期:2018.9
5-Aryl-1H-tetrazoles (1–24) were synthesized and screened for their xanthine oxidase (XO) inhibitory activity using allopurinol as standard inhibitor (IC50 = 2.0 ± 0.01 µM). Six compounds 3, 4, 5, 9, 21, and 24 exhibited significant to weak activities with IC50 values in the range of 7.4–174.2 µM. Active compounds were further subjected to kinetic and molecular docking studies to deduce their modes