ISSN:
0170-2041
Keywords:
1,2,5-Thiadiazole 1,1-dioxides
;
Amino - imino tautomerism
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The acid-catalyzed cycloaddition of N-substituted sulfamides 1a-f with cyanogen affords 2-substituted 4-amino-2,3-dihydro-3-imino-1,2,5-thiadiazole 1,1-dioxides 5a-f which, in turn, could be easily hydrolyzed to give the corresponding 3-oxo derivatives 2a-f by acid treatment. Direct spectral evidence of amino - imino tautomerism in aminothiadiazole 1,1-dioxide derivatives has been observed for the first time in compounds 5.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198919890282
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