THE SYNTHESIS OF SOME PYRIDOCARBAZOLES
- 1 April 1949
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Research
- Vol. 27b (4) , 291-296
- https://doi.org/10.1139/cjr49b-031
Abstract
Three new pyridocarbazoles, namely, 11-pyrido(4,3-a)-, 11-pyrido(3.4-a)-, and 10-pyrido(3,4-b)- or 9-Pyrido(4,3-c)-carbazole have been synthesized from the hydrazones of cyclohexanone and 5-, 8-, and 7-hydrazinoisoquinoline respectively by ring closure and dehydrogenation of the resulting tetrahydropyridocarbazoles. In unsuccessful attempts to determine which of the two possible pyridocarbazoles is formed from the hydrazone of cyclohexanone and 7-hydrazinoisoquinoline, 11-metftyl-10-pyrido(3,4-b)carbazole was also synthesized. The hydrazone of cyclohexanone and 7-amino-8-chloroisoquinoline failed to undergo ring closure.Keywords
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