2,6-Diarylhexahydro-4-pyridazinols by Acid-Catalyzed Cyclization of Benzaldehyde Aryl-2-(2-propenyl)hydrazones

Journal of Heterocyclic Chemistry

Volumn 33, Issue 1, 1996, Pages 213-216

  Bakthavatchalam, Rajagopal ^a   Ciganek, Engelbert ^a   Calabrese, Joseph C ^a  

^a DUPONT COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0010279939     PISSN: 0022152X     EISSN: None     Source Type: Journal    
DOI: 10.1002/jhet.5570330137     Document Type: Article

References (8)

1. A. Jonczyk, J. Wlostowska, and M. Makosza, Synthesis, 795 (1976).
2. For other methods see: J. Barluenga, I. Merino, S. Vina, and F. Palacios, Synthesis, 398 (1990);
3. U. Lerch and J. König, Synthesis, 158 (1983);
4. A. L. Bellamy and L. Maclean, J. Chem. Soc., Perkin Trans. 1, 204 (1979).
5. Hexahydro-5-pyridazinols have been prepared by other methods: C. H. Hassall and K. L. Ramachandran, Heterocycles, 7, 119 (1977);
6. K. Kato and M. Sato, J. Org. Chem,. 39, 3205 (1974);
7. C. H. Hassall, Y. Ogihara, and W. A. Thomas, J. Chem. Soc. (C), 522 (1971);
8. K. Bevan, J. S. Davies, C. H. Hassall, R. B. Morton and D. A. S. Phillips, J. Chem. Soc. (C), 514 (1971).