Zobrazeno 1 - 10
of 227
pro vyhledávání: '"I. Ya. Postovskii"'
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:304-307
A thione-thiol structure was established for 2-mercapto-5-thiono[4,2,1]triazolino[3,4-b] [1,3,4]thiadiazole in accordance with calculations of the π-bonding and solvation energies by the Pariser-Parr-Pople method and also on the basis of a study of
Autor:
Yu. N. Sheinker, I. Ya. Postovskii, B. K. Sadybakasov, I. B. Lundina, V. E. Shklover, Yu. T. Struchkov
Publikováno v:
Journal of Structural Chemistry. 18:870-876
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:302-306
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:339-342
4-(9-Acridinyl)phenylhydrazones and phenylhydrazides were obtained by condensation of the phenylhydrazones of aromatic aldehydes and ketones and the phenyl-hydrazides of carboxylic acids with acridinium salts in the presence of an oxidizing agent.
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:714-717
Acridine condenses under oxidative conditions with phenoxides to give 9-hydroxy-arylacridines.
Publikováno v:
Chemistry of Heterocyclic Compounds. 12:868-872
2-Hydrazino-1,3,4-thiadiazines containing polyhydric phenol residues in the 5 position were obtained by reaction of 3,4-dihydroxy-, 2,5-dihydroxy-, and 2,3,4-trihydroxyphenacyl ω-halides with thiocarbohydrazide. 2-Amino-1,3,4-thiadiazines were obtai
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:496-499
3-Methylquinazolinium iodide adds alkyl- and arylamines, pyrroles, and indoles to give the corresponding 4-substituted 3,4-dihydroquinazolines. A hydroxyl group in the 3-methylquinazolinium pseudobase is replaced by residues of these nucleophiles.
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:615-618
2-Quinazolone reacts with various π-surplus systems (indoles and pyrroles) to give 3,4-dihydro-4-substituted 2-quinazolones. These compounds are capable of oxidation to 4-substituted 2-quinazolones. o-Carbamidobenzylideneurea gives identical product
Publikováno v:
Russian Chemical Reviews. 44:493-509
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:970-973
Quaternary salts of 9-acridinylhetarylmethanes were obtained by condensation of acridine with alkiodides of 2- and 4-methyl derivatives of nitrogen heterocycles in the presence of air oxygen. A study of the spectra of the acridinylhetarylmethanes and