【摘要】 2,3-二基-5,6-二氢吡嗪与醛或酮在氢氧化钠的乙醇溶液中反应制得16种5-烃基-2,3-二甲基吡嗪。产率66%～90%。其中6种为新合成的化合物。产率17%～87.9%。更多还原

【Abstract】 The reaction of 2,3-dimethyl-5,6-dihydropyrazinewith aldehydes or ketones in sodium hydroxide/ethanol solu-tion gave sixteen corresponding 5-alkyl-2,3-dimethyl-pyrazines with yields of 66%～90%,approaching or higherthan that in sodium ethoxide/ethanol solution.Another sixnew compounds were synthesized by similar method withyields of 17%～87.9%.更多还原