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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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D. V. Dar'in S. I. Selivanov P. S. Lobanov A. A. Potekhin 《Chemistry of Heterocyclic Compounds》2004,40(7):888-894
The direction of the cyclocondensation of 2-fluoro-5-nitrobenzaldehyde with five amidines having -hydrogen atoms has been studied. It was established that depending on the structure of the amidine the main products of the reaction may be not only quinazolines but also 3-aminoisoquinolines. A new convenient route has been found for the synthesis of 3-aminoisoquinolines consisting of the cyclocondensation of -acylacetamidines with 2-fluoro-5-nitrobenzaldehyde. 相似文献
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