H. Foster, J. Hurst
1973
Citations
0
Influential Citations
11
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
The reactions of 2-arylaminomethyl-3-nitropyridines with primary aromatic amines, hydrogen chloride, and ethanol gave 3-arylamino-, 3-chloro-, and 3-ethoxy-2-arylpyrazolo[4,3-b]pyridines, respectively. Cyciisation of 2-arylaminomethyl-3-nitropyridines in acetic acid yielded 2-arylpyrazolo[4,3-b]pyridin-3(2H)-ones. Mechanisms for the formation of these compounds are suggested.