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- phenylacetic aldehyde 苯乙醛
- This reaction involves disproportionation of the aldehyde. 这个反应就是醛的歧化作用。
- Subject:To determine aldehyde chemical compound in alcohol quickly. 目的：快速检测酒中醛类化合物.;方法：毛细管气相色谱法。
- This reaction involves disproportionation of the aldehyde . 这个反应就是醛的歧化作用。
- The aldehyde solution was then cooled to 0℃ by an external ice bath. 由外面的冰浴将这种醛的溶液冷却到0℃。
- The ending -ose signifies a sugar; ald- signifies an aldehyde group. 末尾有一ose表示糖;ald-表示醛类。
- Any of a class of monosaccharide sugars containing an aldehyde group. 醛糖，醛式糖含有醛类的单糖中任意一种
- The carbonylation of benzyl chloride to phenylacetic acid catalyzed by carbonyl cobalt is discussed in great detail. 在此基础上对羰基钴在催化羰化反应领域的应用作了展望。
- A technology of desoxybenzoin synthesis from phenylacetic acid by two steps had been researched in this article. 研究了苯乙酸的合成工艺,以苯乙酮为原料,在四醋酸铅的氧化作用下合成苯乙酸。
- The categorical names are often combined, with a six-carbon-atom aldehyde sugar being termed an aldohexose. 它们的命名经常被结合起来,一个六个碳原子的醛糖被称为已醛糖。
- Merit and shortcoming of phenylacetic acid by using benzyl chloride carbonylation process and all kinds of catalyst were chiefly analyzed. 重点分析了采用各种催化剂的氯苄羰基化生产苯乙酸的优缺点。
- The bitterness substances in Luzhou-flavor liquor mainly include tannin, peptide, amino acid, fusel alcohol, aldehyde, and inorganic salt. 浓香型酒中的苦味物质主要有单宁类、多肽、氨基酸、杂醇、醛类和无机盐。
- Progress on the synthesis of phenylacetic acid and its esters by transition metal catalyzed carbonylation during the last few decades was summarized. 综述了过渡金属催化的羰化法合成苯乙酸和苯乙酸酯近几十年来的研究进展。
- Glyceraldehydes (CHOCH (OH)-CH2OH) A simple monosaccharide bearing an aldehyde group. 甘油醛：分子式为[CHOCH（OH）-CH2OH]，它是具醛基的一种简单的单糖。
- Products aftertreatment followed at a warm temperature was prepared. pH is the key factor for raising the yield of phenylacetic acid. 氢氧化钙作中和剂使用，要求羰化产物后处理的温度提高，以保证苯乙酸的产率；碱的用量和浓度是影响苯乙酸产率的重要因素。
- The molar absorbance at 350 nm increases if the aldehyde contains a double bond. 如果醛含一个双键,则摩尔光吸收在350nm处增加。
- A colorless, mobile, oily aldehyde, CCl3CHO, a penetrating lung irritant, used to manufacture DDT and chloral hydrate. 氯醛一种无色、流性、油质的醛，CCl3CHO，对肺部有刺激性，用于制造DDT和水合三氯乙醛
- A colorless, flammable, poisonous liquid aldehyde, CH2CHCHO, having an acrid odor and vapors irritating to the eyes. 丙烯醛一种无色、易燃、有毒的液体乙醛，CH2CHCHO，含有刺激眼睛的辛辣气体
- MethodsThe synthetic route consisted of three steps starting from resorcinol and phenylacetic acid and went through acylation, cyclization, and etherification. 方法以间苯二酚和苯乙酸为原料,经酰化、环合及醚化三步反应进行合成。
- The synthesis of dioxybenzoin from phenylacetic acid by chloridization and Friedel-Crafts reaction is described.The purification method of dioxybenzoin is discussed. 介绍了以苯乙酸为原料经过酰氯化和付-克反应酰基化两步合成二苯乙酮的工艺,并讨论了最终产物的纯化方法。
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