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D. V. Dar’in S. G. Ryazanov S. I. Selivanov P. S. Lobanov A. A. Potekhin 《Chemistry of Heterocyclic Compounds》2008,44(4):461-465
The cyclocondensation of α-acylacetamidines with esters of 2-fluoro-5-nitrobenzoic and 4-chloro-2-methyl-5-pyrimidinecarboxylic
acids leads to condensed azines. The reaction proceeds chemoselectively such that the α-carbon atom of the amidine replaces
the halogen atom in the aromatic ring, while the amino group reacts with the ester group.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 589–594, April, 2008. 相似文献
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L. M. Alekseeva T. I. Mukhanova E. K. Panisheva O. S. Anisimova K. F. Turchin A. V. Komkov V. A. Dorokhov V. G. Granik 《Russian Chemical Bulletin》1999,48(1):160-165
Nenitzescu reaction of acetyl ketene aminals (N,N-acetals) was investigated. The interaction of 2-acetyl-1-amino-1-anilinoethene with benzoquinone gave 3-acetyl-2-amino-7a-hydroxy-1-phenyl-5,7a-dihydro-1H-indol-5-one, which was then transformed into 3-acetyl-2-amino-6-chloro-5-hydroxy-1-phenylindole. The reaction of benzoquinone
with 2-acetyl-1-amino-1-benzoylaminoethene led to the corresponding hydroquinone-adduct which was oxidized to 4-acetylamino-5-(2,5-dihydroxyphenyl)-2-phenyloxazole.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 160–165, January, 1999. 相似文献
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D. V. Dar’in S. I. Selivanov P. S. Lobanov A. A. Potekhin 《Chemistry of Heterocyclic Compounds》2008,44(4):451-456
The cyclocondensation of the N-oxide of the methyl ester of nicotinic acid with 3,3-diamino-1-phenylpropenone and the ethyl
ester of 3,3-diaminoacrylic acid in the presence of benzenesulfonyl chloride gives the corresponding 2,7-naphthyridines. The
cyclocondensation of 3,3-diamino-1-phenylpropene with the N-oxides of dimethyl 3,5-pyridinedicarboxylate and quinolines containing
an electrophilic group at in position 3 yields products of the nucleophilic attack of the carbon nucleophilic site of the
enediamine at the 2-pyridine ring position, while the amine group binds to the exocyclic electrophilic group.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 578–584, April, 2008. 相似文献
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