常见例句

The synthetic process of 2-acetyl-3-methylquinoxaline-1,4-dioxide was studied,which was synthesized in over all yield of 86% by the oxidation of o-nitro-aniline and Beirut reaction of benzofuraxan and acetylacetone.
研究了2-乙酰基-3-甲基喹?f啉-1,4-二氧化物的合成工艺。以邻硝基苯胺为起始原料,经过氧化反应和Beirut反应,以86%25的总收率制得产物2-乙酰基-3-甲基喹?f啉-1,4-二氧化物。