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而茅莓根的主要化学成分是有机酸酯和烷烃。In the roots, there were carboxylic acid ester and alkane.

芳香羧酸进行脱羧反应是一个例外。One exception is the decarboxylation of aromatic carboxylic acids.

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分析了不饱和羧酸酯化反应的机理。The esterification mechanism of unsaturated carboxylic acid was analyzed.

合成了十二种噻吨酮酰胺类光引发剂。Twelve different thioxanthone carboxylic amides derivatives are prepared.

一种长链羧酸的甘油三酯,20℃以下为固态。Fat A triglyceride of a long-chain carboxylic acid that is solid below 20℃.

羧酸酯的合成主要用硫酸作催化剂,但这种催化剂有许多缺点。Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters.

硼酸酯、有机胺、三元羧酸的复配物等。Boric acid esters, organic amine, triple carboxylic acid of blends with objects.

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醇,醛与酮和羧酸之间的氧化还原关系。REDOX Relationships amongst Alcohols, Aldehydes and Ketones and Carboxylic acids.

喜树碱在体内存在内酯环形式和羧酸盐形式的平衡。In vivo camptothecin remains a balance of E-lactone form and Carboxylic salt form.

用本法对未知氧化度样品的羧基含量进行测定,得到了较好的结果。The carboxylic in unknown samples was determined by this method with good results.

用本法对未知氧化度样品的羧基含量进行测定,得到了较好的结果。The carboxylic in unknown samples was dc. termined by this method with good results.

通过傅克酰基化反应制备了羧基化交联聚苯乙烯微球。Carboxylic crosslinked polystyrene microsphere was prepared by F-C acylation reaction.

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介绍了丙二酰氧基硼氢化钾的制备及其原位与烯烃的选择性硼氢化。The effect of potassium borohydride on ester and carboxylic acid reduction was introduced.

诱导效应可使羧酸中羧基碳原子的电子云密度发生改变。Inductive effect causes electron density of Carboxylic cardon atom in Carboxylic acid to change.

本文介绍了羧酸酯化反应催化剂的研究进展。The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.

我们认为这是卤族离子与芳羧酸吸附竞争,使芳羧酸分子从银胶表面脱附所导致的。The influence of halogen ions on SERS of aromatic carboxylic acids is discussed in the second part.

提供了用于递送活性剂的氰基苯氧基羧酸化合物及其组合物。Cyanophenoxy carboxylic acid compounds and compositions for the delivery of active agents are provided.

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研究了侧链含羧基的聚乙烯醇胺肟螯合纤维吸附金的性能。The gold-adsorbing property of the amido oximime chelate fiber of carboxylic polyvinyl alcohol is studied.

这条路线是先用羧酸使噻吩已酰化制得酸基噻吩。The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene.

最好的树脂至少包含一个酸性组和更多的最好至少一羧酸组。Preferably the resin contains at least one acidic group and more preferably at least one carboxylic acid group.