L. Deady, A. J. Kaye
1997
Citations
0
Influential Citations
2
Citations
Journal
Australian Journal of Chemistry
Abstract
The condensation of 2,3-diaminobenzoic acid and the 5-chloro derivative with o-hydroxyphenylglyoxylic acid, isatin and benzothiophen-2,3-dione in polyphosphoric acid leads to the appropriate tetracycles. Isomeric products are formed from these unsymmetrical diamines, and methods of assigning particular structures are described.