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以胡椒醛为原料 ,在室温条件下 ,与硝酸和乙酸酐结合生成的温和硝化剂 (CH3 COONO2 )反应 ,硝化得 6 硝基胡椒醛 1.1被七水硫酸亚铁在氨水的存在下还原成为 6 氨基胡椒醛 2 .2在乙醇钠的催化下 ,与乙酰丙酮发生Friedla nder缩合反应 ,得到化合物 2 甲基 6 ,7 亚甲二氧基 3 喹啉乙酮 3.3为未见文献报导的化合物
With piperonal as raw material, it was reacted with nitric acid and acetic anhydride to form a mild nitration agent (CH3 COONO2) at room temperature. Nitration of 6-nitro-piperonal 1.1 was reduced to 6 with ferrous sulfate heptahydrate in the presence of ammonia Aminocaproaldehyde 2 .2 Under the catalysis of sodium ethoxide, Friedlander condensation reaction with acetylacetone to give compound 2 methyl 6, methylenedioxy 3 quinolinone 3.3 is not reported in the literature compound