R. Hull, P. J. A. Broek, M. L. Swain
1975
Citations
0
Influential Citations
9
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
7-Chloro-4-methoxyquinoline undergoes ring scission on treatment with thiophosgene and barium carbonate. The resulting 4-chloro-2-isothiocyanato-β-methoxycinnamaldehyde (3) undergoes ready ring closure to 7-chloro-1,2-dihydro-4-methoxy-2-thioxo-quinoline-3-carbaldehyde (4). Some reactions of the thioxoquinoline (4) and the corresponding ethylthio-(7) and sulphone (44) derivatives are described which give rise to other heterocyclic systems.