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Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.

综述羧酸衍生物的醇盐氧化二聚成键的规律,重点是立体选择性的

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An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.

酸钯/邻菲洛林/脂肪胺为催化体,丙酸和酯为原料,通基交换反应制备丙酯。

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They are formed byatmospheric photochemistry reaction, and could product OH radical, alkyl radical, ozone,carboxylic acid peroxyacetyl nitrates by atmospheric photochemistry reaction.

羰基化合物既是大气光化学反应的产物,又能通光化学反应生成羧酸、羟基自由基、臭氧和酰硝酸酯。

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The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures.

最常用的方法是通端羧酸基纳米结构的二酰亚胺活化氨基化合物来进行生物分子与1-D纳米结构的共价结合。

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双语版 TED-Ed 演讲精选

Carboxylic acids are in the mix, too, adding notes of cheese.

也混在其中增加了芝士道。

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CNN 10 学生英语 2022年10月合集

Now the study found that 50 molecular compounds were higher in mosquito magnets especially carboxylic acid on the skin.

现研究发现,招蚊子喜爱人群中有50种分子合物更多,尤其是皮肤上

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21世纪英文报

Also, mosquitoes are most attracted to a kind of chemical called carboxylic acid, which is usually produced by bacteria on human skin.

此外,蚊子最容易被一种名为羧学物质吸引,这种学物质通常由人类皮肤上菌产生。

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Scishow 精选系列

Things like long chain amines have a fishy or rotten smell, and some people say that long chain carboxylic acids smell like goats.

长链胺之类东西有腥或腐,有人说长链羧闻起来像山羊。

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Crash Course 综合篇

It's also got the carboxylic acid though, so let's go ahead and call it butenoic acid.

不过它也含有羧, 所以让我们继续称之为丁烯

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Crash Course 综合篇

Numbering the other way, 1-2-3-4, the carboxylic acid is on carbon 1 (that's pretty ideal).

以另一种方式编号, 1-2-3-4, 羧在碳 1 上(这非常理想)。

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Newsweek

Some have suggested that these chemicals, including carboxylic acids, may have arrived on Earth from space, traveling via comets and meteorites to the forming planet.

一些人认为,包括羧在内这些学物质可能是从太空中通过彗星和陨石到达地球

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Newsweek

Carboxylic acids are a type of organic compound characterized by a carbon (C) atom doubly bonded to an oxygen (O) atom and singly bonded to a hydroxyl group (-OH) .

是一种有机合物,其特征是一个碳(C)原子与一个氧(O)原子双键结合,并与一个羟基(-OH)单键结合。

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学 Crash Course

Acetone has a ketone group and it's called 'acetone' because it was derived from acetic acid, which is vinegar, the most common carboxylic acid in your kitchen.

丙酮有一个酮基,之所以称为“丙酮”,是因为它是从醋中提取,醋是厨房中最常见

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学 Crash Course

While carboxylic acids are ketones bonded to an OH group instead of an R group, and ethers are just alcohols bonded to an R-group instead of a hydrogen.

是键合到 OH 基团而不是 R 基团酮,而醚只是键合到 R 基团而不是氢醇。

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Crash Course 综合篇

The most weighted of all is the carboxylic acid functional group, so no matter what else is on a six carbon chain, if there's a carboxylic acid, then it's a hexanoic acid.

最重要是羧官能团,所以无论六碳链上还有什么, 如果有羧, 那么它就是己

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Osmosis-内分泌

After that happens, the liver turns the fatty acids into ketone bodies, like acetoacetic acid and beta hydroxybutyric acid; acetoacetic acid is a ketoacid because it has a ketone group and a carboxylic acid group.

此后,肝把脂肪成酮体,比如乙酰乙、β-羟基丁;乙酰乙是一种酮,因为它有酮基团和羧基团。

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Crash Course 综合篇

If it's a six carbon chain with a carboxylic acid on it and an alcohol on one of the other carbons, our name has to do two things: identify that the hydroxyl group is there and identify where it is.

如果它是一个六碳链, 上面有一个羧, 另一个碳上有一个醇,我们名字必须做两件事:确定羟基存在并确定它位置。

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