Tetrazole compounds.<b>8</b>. Synthesis of tetrazolylpyrimidines from tetrazolyl-substituted enamino ketones
作者:Gerhard W. Fischer
DOI:10.1002/jhet.5570300610
日期:1993.12
Tetrazolyl-substitutedenaminoketones 1 react with various amidines 2 to give 5-(1-phenyl-1H-tetrazol-5-yl)pyrimidines 3. In the case of the chloroacetyl enamine 4 4-(N,N-dimethylaminomethyl)-substituted tetra-zolylpyrimidines 5 were obtained. Subsequent hydrolysis of the 4-trifluoromethyl derivatives 3b, 3d and 3g afforded the corresponding 5-(1-phenyl-1H-tetrazol-5-yl)pyrimidine-4-carboxylic acids
四唑基-取代的烯氨基酮1与各种脒反应2,得到5-(1-苯基- 1 H ^ -四唑-5-基)嘧啶3。在氯乙酰基烯胺4的情况下,获得4-(N,N-二甲基氨基甲基)-取代的四-唑基嘧啶5。随后将4-三氟甲基衍生物3b,3d和3g水解,得到相应的5-(1-苯基-1 H-四唑-5-基)嘧啶-4-羧酸6。