Condensation reactions of different aldehydes or ketones with ethylene glycol could also be conducted over the acid-modified kaolin catalyst.
在优化的反应条件下,研究了不同的醛(酮)与乙二醇的缩合反应。
参考来源 - 质子酸改性高岭土催化合成缩醛(酮)Results 16 compounds were identified in normal rat urine, most of which were ketones. The three most abundant components were 2 -Heptanone, 4 - Heptanone and 2 - Pentanone.
结果从正常大鼠尿液中鉴定出16个化合物,大多数是酮类物质,其中含量最高的3个化合物为2-庚酮、4-庚酮和2-戊酮。
参考来源 - 大鼠尿液中挥发性成分的测定方法·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groups 酮 → see also acetone
Not recommended for exposure to ketones and brake oil.
不建议暴露于酮类及刹车油中。
The process of burning fat produces ketones, which some claim have an appetite-suppressing effect.
燃烧脂肪的过程会产生酮，而酮据说有抑制食欲之效。
Do not recommend the use of low molecular weight in ketones, esters and mixtures containing nitrate.
不建议使用于酮类、低分子量的酯类及含硝的混合物。
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