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
Bu<sub>4</sub>NI-Catalyzed, Radical-Induced Regioselective <i>N</i>-Alkylations and Arylations of Tetrazoles Using Organic Peroxides/Peresters
作者:Suresh Rajamanickam、Chitranjan Sah、Bilal Ahmad Mir、Subhendu Ghosh、Garima Sethi、Vinita Yadav、Sugumar Venkataramani、Bhisma K. Patel
DOI:10.1021/acs.joc.9b02875
日期:2020.2.21
using tert-butyl hydroperoxide (TBHP) as the methyl source, alkyl diacyl peroxides as the primary alkyl source, alkyl peresters as the secondary and tertiaryalkyl sources, and aryl diacyl peroxides as the arylating source. These reactions proceed without pre-functionalization of tetrazole and in the absence of any metal catalysts. Here, peroxides serve the dual role of oxidants as well as alkylating or
Design, synthesis and evaluation of 5-substituted 1-H-tetrazoles as potent anticonvulsant agents
作者:Ai-Mei Liao、Tiantian Wang、Bangrong Cai、Yi Jin、Seunghoon Cheon、ChangJu Chun、Zengtao Wang
DOI:10.1007/s12272-016-0881-y
日期:2017.4
A series of 5-substituted 1-H-tetrazoles were designed and synthesized as potent anticonvulsantagents. Their preliminary anticonvulsant activities were evaluated using maximal electroshock and subcutaneous pentylenetetrazole (scPTZ) seizure tests. Neurotoxicity was determined using rotarod test. The results indicated that the compound 2j in scPTZ model exhibited the ED50 values of 83.3 mg/kg, superior
mesoporous silica with mild Brönsted acid properties, has been used as an efficient, metal-free, heterogeneous catalyst for the click synthesis of 5-benzyl and 5-aryl-1H-tetrazoles from nitriles in DMF at 90 °C. This catalyst offers advantages including ease of operation, milder conditions, high yields, and reusability. Studies are presented that demonstrate the robust nature of the catalyst under the