- A comparative study between heterogeneous stannous chloride loaded silica nanoparticles and a homogeneous stannous chloride catalyst in the synthesis of 5-substituted 1: H -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 advantages.
- Kumar, Arvind,Kumar, Satyanand,Khajuria, Yugal,Awasthi, Satish Kumar
-
p. 75227 - 75233
(2016/08/24)
-
- Regioselective and stereoselective route to N2-β-tetrazolyl unnatural nucleosides via SN2 reaction at the anomeric center of Hoffer's chlorosugar
-
We are reporting a regioselective and stereoselective route to N2-β-tetrazolyl aromatic donor/acceptor unnatural nucleosides as new class of possible DNA base analogs. The SN2 substitution reaction at the anomeric center of Hoffer's chlorosugar with various 5-substituted aromatic tetrazoles in THF in presence of K2CO3 proceeds with regioselectivity at N2-tetrazoles and stereoselectivity at α-chlorosugar with very good yield. The stereoelectronic and steric effects play a crucial role for the observed outcome which is also supported from a theoretical (DFT) study. The methodology is simple, eco-compatible and the tetrazolyl unnatural nucleosides might find applications in decorating DNA for various biotechnological and DNA based material science applications.
- Bag, Subhendu Sekhar,Talukdar, Sangita,Anjali
-
supporting information
p. 2044 - 2050
(2016/04/05)
-
- Synthetic application of gold nanoparticles and auric chloride for the synthesis of 5-substituted 1H-tetrazoles
-
An effective one-pot, convenient gold catalyzed synthesis of 5-substituted 1H-tetrazoles has been discussed. The study demonstrated the comparative overview for utilization of gold(iii) and gold nano-particles (spheres) as a catalyst. Detailed understandi
- Kumar, Satyanand,Kumar, Arvind,Agarwal, Alka,Awasthi, Satish Kumar
-
p. 21651 - 21658
(2015/03/30)
-
- Selective detection of F- by chromogenic tetrazole receptor
-
A chromogenic anion host 4, containing two amide functionalities linked to azo dye and tetrazole rings, was synthesised and its complexes with various anions were investigated. The results show that receptor 4 can recognise selectively biologically import
- Pazik, Agnieszka,Skwierawska, Anna
-
p. 189 - 198
(2013/05/21)
-
- Design and synthesis of low molecular weight compounds with complement inhibition activity
-
An attempt was made to synthesize a series of non-cytotoxic low molecular weight compounds of varying substitutions and functionalities having pharmacophore activity like carbonyl compounds, carboxylic acid and bioisosteres like tetrazole and phenyl acrylic acid. The in vitro assay of these analogues for the inhibition of complement activity revealed significant inhibitory activity for varying substituents and, particularly, for bioisosteres, that is, tetrazole and phenyl acrylic acid derivatives.
- Master, Hoshang E.,Khan, Shabana I.,Poojari, Krishna A.
-
p. 4891 - 4899
(2007/10/03)
-
- A Study of Annular Tautomerism, Interannular Conjugation, and Methylation Reactions of ortho-Substituted-5-aryltetrazoles using Carbon-13 and Hydrogen-1 N.M.R. Spectroscopy
-
In ortho-substituted-5-phenyltetrazoles, Ar-CN4H (Ar = 2'-MeC6H4, 2'-ClC6H4, or 2',6'-Cl2C6H3), the rings are twisted out of the planar configuration and interannular conjugation is inhibited.In each case the tetrazole 1-NH tautomer is strongly predominan
- Butler, Richard N.,Garvin, Victor C.
-
p. 390 - 393
(2007/10/02)
-
