Title of article
An improved synthesis and some reactions of diethyl 4-oxo-4H-pyran-2,5-dicarboxylate
Author/Authors
Boris I. and Obydennov، نويسنده , , Dmitrii L. and Rِschenthaler، نويسنده , , Gerd-Volker and Sosnovskikh، نويسنده , , Vyacheslav Ya.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2013
Pages
4
From page
6545
To page
6548
Abstract
The reaction of ethyl 2-(dimethylamino)methylene-3-oxobutanoate with diethyl oxalate in the presence of sodium hydride in THF gave diethyl 4-oxo-4H-pyran-2,5-dicarboxylate, from which 4-oxo-4H-pyran-2,5-dicarboxylic and 4-oxo-1-phenyl-1,4-dihydropyridine-2,5-dicarboxylic acids and their derivatives were obtained in good yields.
Keywords
5-dicarboxylic acid , 4-dihydropyridine-2 , Claisen condensation , Ethyl 2-(dimethylamino)methylene-3-oxobutanoate , Diethyl oxalate , 4-Oxo-4H-pyran-2 , 5-dicarboxylic acid , 4-Oxo-1-phenyl-1
Journal title
Tetrahedron Letters
Serial Year
2013
Journal title
Tetrahedron Letters
Record number
1886766
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