On the synthesis of the first representatives of bis(benzo)-bispidinoaza- 14-crown-4 ethers

[No abstract available

Condensation of 1-amino-4-azafluorene with α-diketones and α,β-unsaturated ketones

Condensation of 1-amino-4-azafluorene with α-diketones and with unsaturated ketones in basic medium gives novel substituted 1,4- diazafluoranthenes and also dihydro-4-azafluoreno[9,9a,1-b,c] cyclohexano[2′,3′-e]- and indano[1′,2′-e]azepines

On the synthesis of the first representatives of bis(benzo)-bispidinoaza- 14-crown-4 ethers

[No abstract available

[3+2] Cycloaddition of dimethyl acetylenedicarboxylate, methyl acrylate, and ethyl acrylate to 4,5-dihydro-5-methyl-3h-spiro[benz-2-azepine-3,1′- cyclohexane] N-oxide

The cycloaddition of methyl acrylate and ethyl acrylate to 4,5-dihydro-5-methyl-3H-spiro[benz-2-azepine-3,1′-cyclohexane] N-oxide proceeds without either regiospecificity or stereospecificity. Eight geometrical isomers of spiro[isoxazolidino[3,2-a]benz-2-azepine-5,1′-cyclohexane] were formed, of which several were isolated as pure samples. The cycloaddition of dimethyl acetylenedicarboxylate proceeds stereoselectively, leading to spiro[isoxazolino[3,2-a]benz-2-azepine-5,1′-cyclohexane] with cis arrangement of the protons at C(7) and C(11b)

High-temperature catalytic synthesis of quinolino[1,2-a]benzimid azole and some of its transformations

The possibility of synthesis of quinoline[1,2-a]benzimidazole from aniline and quinoline on a dehydrogenating mark K-16 catalyst at 560-580°C was demonstrated. It was established that in the nitration of quinolino[1,2-a]benzimidazole, a 10-nitro-derivative is formed, whereas in the reaction with ADCE, tetramethoxycarbonylquinolino[1,2-a]pyrido[2′,1′-b]benzimidazole is formed. ©1996 Plenum Publishing Corporation

Condensation of 1-amino-4-azafluorene with α-diketones and α,β-unsaturated ketones

Condensation of 1-amino-4-azafluorene with α-diketones and with unsaturated ketones in basic medium gives novel substituted 1,4- diazafluoranthenes and also dihydro-4-azafluoreno[9,9a,1-b,c] cyclohexano[2′,3′-e]- and indano[1′,2′-e]azepines