Microwave-assisted, solvent-free, one-pot, three-component synthesis of fused pyran derivatives containing benzothiazole nucleus catalyzed by pyrrolidine-acetic acid and their biological evaluation

2017 ◽  
Vol 148 (6) ◽  
pp. 1057-1067 ◽  
Author(s):  
Haresh B. Patel ◽  
Jayvirsinh D. Gohil ◽  
Manish P. Patel
ChemInform ◽  
2006 ◽  
Vol 37 (32) ◽  
Author(s):  
Mehdi Adib ◽  
Amin Haghighat Jahromi ◽  
Narjes Tavoosi ◽  
Mohammad Mahdavi ◽  
Hamid Reza Bijanzadeh

Author(s):  
Mubarak H. Shaikh ◽  
Dnyaneshwar D. Subhedar ◽  
Vijay M. Khedkar ◽  
Bapurao B. Shingate

2020 ◽  
Vol 20 (5) ◽  
pp. 2917-2929
Author(s):  
Ahmed F. M. EL-Mahdy ◽  
Hassan A. H. EL-Sherief ◽  
Zeinab A. Hozien ◽  
Shiao-Wei Kuo

A rapid and efficient one-pot protocol has been developed for the synthesis of s-triazolo[3,4-b][1,3,4]thiadiazine and s-triazolo[3,4-b][1,3,4]thiadiazole nanoarchitectonics through the reaction of s-triazoles with ketones and nitriles in acetic acid containing a catalytic amount of sulfuric acid under microwave irradiation in excellent yields. With this catalytic reaction, the cheap sulfuric acid as well as other acids were examined as catalysts and the highly toxic and irritating haloketones and halonitriles were avoided to form. The effects of microwave power, temperature, time, solvent and catalyst were examined. This method achieved a better performance; e.g., higher yields, shorter reaction time and easier work-up as compared to other conventional methods. Therefore, the proposed method will be readily applicable to the synthesis of biologically important compounds containing s-triazolo[3,4-b][1,3,4]thiadiazine and s-triazolo[3,4-b][1,3,4]thiadiazole framework.


ChemInform ◽  
2011 ◽  
Vol 42 (32) ◽  
pp. no-no
Author(s):  
Issa Yavari ◽  
Saeideh Beheshti ◽  
Zinatossadat Hossaini ◽  
Sanaz Souri

Sign in / Sign up

Export Citation Format

Share Document