- ω-substituted-2-(polyenamino)- or annelated nitropyridines from 1-(3- cyano-5-nitropyridyl-2)-pyridinium salts
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The interaction of 1-(3-cyano-5-nitropyridyl-2)pyridinium salts with different nucleophilic reagents yields 2-substituted 3-cyano-5-nitropyridine including 2-polyenamino derivatives. 3-Nitro-5(H)-5-iminodipyridol[1,2- a:3,2-c]pyrimidine hydrochloride is synthesized by the react of 2-chloro-3- cyano-5-nitropyridine with 2-aminopyridine.
- Yakovlev, Mikhail Yu.,Kadushkin, Alexander V.,Solov'eva, Natalya P.,Anisimova, Olga S.,Granik, Vladimir G.
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p. 5775 - 5780
(2007/10/03)
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- CHEMISTRY OF ENOL ETHERS. AMINOFORMYLATION OF SILYLENOL AND SILYLDIENOL ETHERS
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The reaction of 1-trimethylsilyloxy-1-alkenes and 1-trimethylsilyloxy-1,3-butadienes with an aminoformylating complex and subsequent treatment by aniline hydrochloride gave tri- and pentamethine salts, namely, the hydrochloride salts of the dianils of malonic and glutaconic aldehydes.
- Makin, S. M.,Kruglikova, R. I.,Lonina, N. N.
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p. 627 - 629
(2007/10/02)
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- CHEMISTRY OF ENOL ETHERS. LXXI. CONDENSATION OF THE TETRAETHYL ACETAL OF MALONIC ALDEHYDE WITH ENOL SILYL ETHERS
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The action of trimethylsilyl ethers on the tetraethyl acetal of malonic aldehyde gave derivatives of 1,5- and 1,7-diketones and dialdehydes.The dialdehyde derivatives readily react with the hydrochloride salt of aniline in ethanol to form alkyl-substituted penta- and heptamethine salts.
- Makin, S.M.,Kruglikova, R.I.,Kharitonova, O.V.
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p. 1281 - 1286
(2007/10/02)
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- REACTIONS OF PERCHLORO-2-CYCLOPENTEN-1-ONE AND PERCHLORO-4-CYCLPENTENE-1,3-DIONE WITH PYRIDINE AND QUINOLINE DERIVATIVES
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By the reaction of perchloro-2-cyclopenten-1-one with pyridine and quinoline derivatives the corresponding onium salts of 2,4,4,5,5-pentachloro-3-hydroxy-2-cyclopentenone were obtained.The analogous reactions of perchloro-4-cyclopentene-1,3-dione lead either to onium salts of 2,2,5-trichloro-4-hydroxy-4-cyclopentene-1,3-dione or to betaines.The effect of the nature of the solvent and the structure of the amine on the reaction path was examined.
- Simonov, V. D.,Chernova, L. N.,Akhmerova, S. G.,Yasman, Ya. B.
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p. 1974 - 1978
(2007/10/02)
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