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- Carboxyl Reduction The carboxyl groups of all amino acids undergo organic reactions leading to the formation of amides, esters, and acid halides. 羧基還原所有氨基酸的羧基基團,都能進(jìn)行有機反應,并可形成酰胺化合物,酯和鹵化物。
- Carboxylic acid esters are important chemical raw materials. 羧酸酯是重要的化工原料。
- Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters. 羧酸酯的合成主要用硫酸作催化劑，但這種催化劑有許多缺點(diǎn)。
- The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene. 這條路線(xiàn)是先用羧酸使噻吩已?；频盟峄绶?。
- One exception is the decarboxylation of aromatic carboxylic acids. 芳香羧酸進(jìn)行脫羧反應是一個(gè)例外。
- As it is a weak acid compared to other acid halides, symptoms of hydrofluoric acid burn are less immediately irritating and may be delayed as late as 24 hours after exposure. 然而，因氫氟酸之酸性遠較其他強酸為低，在低濃度暴露時(shí)，可能遲至24小時(shí)才產(chǎn)生明顯癥狀；
- Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide. 摘要利用脂肪酶在有機介質(zhì)中催化制備過(guò)氧酸，丙烯醇在過(guò)氧酸的作用下發(fā)生環(huán)氧化反應生成環(huán)氧丙醇。
- Nitric acid oxidation was found to reduce the surface hydroxyl (OH) groups in increasing the carboxylic acid (COOH) groups. 硝酸氧化減少了碳纖維表面的羥基含量，同時(shí)增加了碳纖維表面的羧基含量。
- In the reaction, some aniline is completely oxidized to CO2 or partially oxidized to carboxylic acid. 在反應中有一部分苯胺被完全氧化或部分氧化成CO2或羧酸，
- PVAC latex is prepared by the polymerization of the new type of ethylene carboxylic acid . 采用乳液聚合制備了新的丙烯酸改性的聚乙酸乙烯酯(PVAC)乳液。
- Preparation methods and degradation behavior for poly(carboxylic acid silyl ester)s were reviewed. 綜述了聚羧酸硅基酯的合成方法和降解性質(zhì)。
- The formate activates the carboxylic acid and functions as a source of nucleophilic alkoxide. 羧酸甲酸激活的職能和核醇源泉.
- The paper introduces the catalyst research advances in esterification reaction of carboxylic acid. 本文介紹了羧酸酯化反應催化劑的研究進(jìn)展。
- Ingredients: Chamomile extract, hamamelis extract, pyrroldone carboxylic acid, HA, etc. 主要成份：春黃菊提取液，金縷梅提取液、吡咯烷酮羧酸、透明質(zhì)酸等。
- The stability,decomposition and generation of the acetic acid halid and other organic halide in the treated water is briefly discussed. 簡(jiǎn)述了生成的鹵化乙酸和其它有機鹵化物的穩定性及分解、生成等問(wèn)題.
- Pyruvic acid A 3-carbon carboxylic acid (CH3COCOOH) that is an intermediate in GLYCOLYSIS. 丙酮酸：一種三碳羧酸(CH3COCOOH)，是糖酵解的中間物。
- FD is a kind of retanning agent condensated with glyoxal,formaldehyde,carboxylic acid and urea. 復鞣劑FD是一種由乙二醛、甲醛、羧酸衍生物、尿素等縮合而成的兩性皮革復鞣劑。
- The last step is the oxidation reaction that converts the alkyne triple bond to carboxylic acid group. 通過(guò)對五種醛和三種末端炔進(jìn)行的條件篩選，確立了通用合成方法。
- In this papev,is be explorated the capability of PVAC latex of ethylene carboxylic acid . 考察了丙烯酸改性的PVAC乳液的性能。
- The effect of potassium borohydride on ester and carboxylic acid reduction was introduced. 研究了硼氫化鉀對酯和羧酸的還原作用。
