Efficient Synthesis of Uracil??Derived Hexa??and Tetrahydropyrido [2, 3??d] pyrimidines
N Tolstoluzhsky, P Nikolaienko…
Index: Tolstoluzhsky, Nikita; Nikolaienko, Pavlo; Gorobets, Nikolay; Van Der Eycken, Erik V.; Kolos, Nadezhda European Journal of Organic Chemistry, 2013 , # 24 p. 5364 - 5369
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Abstract
Abstract A reaction of 6-amino-1, 3-dimethyluracil with 3-(hetero) aroylacrylic acids and their methyl esters leads to hexahydropyrido [2, 3-d] pyrimidine-5-carboxylic acids or the corresponding methyl esters in high to excellent yields. One-pot oxidation of the acid derivatives with CAN is accompanied by decarboxylation to give tetrahydropyrido [2, 3-d] pyrimidines, while oxidation with bromine resulted in the formation of tetrahydropyrido [2, ...
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