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- W2384644410 abstract "2-Ethyl-4, 6-dihydroxypyrimidine was synthesized , with propionitrile as starting material, by reacting with hydrogen chloride and free ammonia, then in the presence of sodium methoxide by means of cyclization of diethyl malonuric esters with propionamide hydrochloride in 86% yield. The structures of these compounds were confirmed by MS and melting point. Their purity was better than 98%, analyzed by LC. The optimum conditions for synthesizing propionamide hydrochloride were exclusion of moisture and keeping the reaction temperature at -10 - 0℃, when hydrogen chloride gas was led in, its yield was 94. 0%." @default.
- W2384644410 created "2016-06-24" @default.
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- W2384644410 date "2003-01-01" @default.
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- W2384644410 title "Synthesis of 2-ethyl-4, 6-dihydroxypyrimidine" @default.
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