112085-19-5Relevant academic research and scientific papers
ELECTROCHEMICAL RING-CONTRACTION OF FUSED THIADIAZINIUM SALTS: PREPARATION OF FUSED PYRAZOLE DERIVATIVES.
Molina, Pedro,Desamparados Velasco, M.,Arques, Antonio
, p. 5797 - 5806 (2007/10/02)
The electroreduction of several fused -thiadiazinium salts on mercury pool cathode in an aprotic medium has been studied.In preparative experiments using dimethylformamide 0.2M in lithium perchlorate as the electrolyte, the -thiadiazinium sa
FUSED THIAZOLES FROM 3-AMINO-THIAZOLINE-2-THIONES: SYNTHESIS OF PYRAZOLOTHIAZOLE AND THIAZOLO-1,3,4-THIADIAZINE DERIVATIVES
Molina, Pedro,Argues, Antonio,Velasco, Maria de los Desamparados,Villalgordo, Jose Manuel
, p. 1323 - 1332 (2007/10/02)
Two approaches for the preparation of a number of pyrazolothiazoles are reported.The first involves reaction of 3-amino-4-phenyl-thiazoline-2-thione 1 with phenacyl bromides to give thiazolo-1,3,4-thiadiazines 2 which by action of triethylamine are converted into the pyrazolothiazoles 4.The second is based on the reaction of 3-amino-2-methylthio-4-phenylthiazolium cation 5 with activated acetonitriles to give 7-substituted 6-amino-3-phenylpyrazolothiazoles 7.
