Conversion of thiobiurets to thiadiazolones and triazinones by oxidative cyclization
Egyptian Journal of Chemistry. 2000; 43 (2): 147-63
in English
| IMEMR
| ID: emr-53707
ABSTRACT
1-Aroyl-5-aryl-2-thiobiurets [2a-i] react with hydrogen peroxide in an acidic medium yielding the new 5-aroylamino-2-aryl-2H-1,2,4- thiadiazol-3-ones [3a-i]. On treatment with alkali, thiobiurets [2a- c] gave 6-aryl-4-thioxo-1,2,3,4-tetrahydro-1,3,5-triazin-2-ones [4a- c]. Structures of the new products were established by analytical and spectroscopic [IR, 1H-NMR and MS] results. A mechanism is proposed to explain the formation of compound [7]
Search on Google
Index:
IMEMR (Eastern Mediterranean)
Main subject:
Spectrophotometry, Infrared
/
Mass Spectrometry
/
Thiadiazoles
/
Thiazoles
/
Triazines
/
Magnetic Resonance Spectroscopy
Language:
English
Journal:
Egypt. J. Chem.
Year:
2000
Similar
MEDLINE
...
LILACS
LIS