Synthesis of 5-aryl-1,2,3,4-tetrahydrobenzo[a]phenanthridines
Previously unknown derivatives of tetrahydro[a]phenanthridine containing annelated benzoquinoline and cyclohexene nuclei were prepared by condensation of azomethines of the 2-naphthylamine series with cyclohexanone. The possibility of synthesis of such compounds without preliminarily preparing Schiff bases was demonstrated. The effect of substituents in the aromatic ring of the azomethine on the yield of the target products was elucidated. The IR, UV, 1H NMR, and mass spectra of the synthesized compounds were discussed.
Synthesis of 3-aryl-1,2,3,4-tetrahydrobenzo[f]quinolin-1-ones
2-Arylmethyleneaminonaphthalenes react with Meldrum's acid to give 3-aryl-1,2,3,4-tetrahydrobenzo[f]quinolin-1-ones as a result of nucleophilic addition followed by intramolecular heterocyclizalion and decarboxylation.
Kozlov,Basalaeva,Tychinskaya
p. 1360 - 1364
(2007/10/03)
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