S. AL-Gwady, M. (2009). Synthesis of 2-Amino-5-Substituted-1,3,4-Thiadiazoles (ATDA) and Their Derivatives Using Conventional and Microwave Techniques*. , 20(1), 1-7. doi: 10.33899/rjs.2009.40242
Moayed S. AL-Gwady. "Synthesis of 2-Amino-5-Substituted-1,3,4-Thiadiazoles (ATDA) and Their Derivatives Using Conventional and Microwave Techniques*". , 20, 1, 2009, 1-7. doi: 10.33899/rjs.2009.40242
S. AL-Gwady, M. (2009). 'Synthesis of 2-Amino-5-Substituted-1,3,4-Thiadiazoles (ATDA) and Their Derivatives Using Conventional and Microwave Techniques*', , 20(1), pp. 1-7. doi: 10.33899/rjs.2009.40242
S. AL-Gwady, M. Synthesis of 2-Amino-5-Substituted-1,3,4-Thiadiazoles (ATDA) and Their Derivatives Using Conventional and Microwave Techniques*. , 2009; 20(1): 1-7. doi: 10.33899/rjs.2009.40242

Synthesis of 2-Amino-5-Substituted-1,3,4-Thiadiazoles (ATDA) and Their Derivatives Using Conventional and Microwave Techniques*

Rafidain Journal of Science
Article 1, Volume 20, Issue 1, 2009, Pages 1-7    PDF (0 K)
DOI: 10.33899/rjs.2009.40242
Author
Moayed S. AL-Gwady
Abstract
A variety of 2-Amino-5-substituted -1,3,4-thiadiazoles (ATDA) were prepared by the reaction of thiosemicarbazide with different substituted carboxylic acids and phosphorous oxychloride as catalyst using conventional methods in comparison with the advantages of microwave techniques.
The 5-(substituted-1,3,4-thiadiazol-2-yl) carbamates derivatives were prepared by refluxing these (ATDA) with ethyl chloroformates using pyridine as a base to neutralize the acid produced which gave higher yield than sodium carbonate. The structures of the products were supported by IR spectroscopy.
Keywords
thiadiazole; carbamates; microwave techniques
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