该中间体受热脱水和水解得到不饱和羧酸 The acetic anhydride loses the hydrogen atom under the alkali function, the production acetic anhydride anoin, this anoin and the benzene has the nucleophilic addition reaction to obtain the carboxyl group acid anhydride intermediate, this intermediate being heated...
On the other hand, the accumulated molar amount of hydrogen gas becomes an alternative way to estimate the carboxylic acid corrosion potential. 展开 关键词: Carboxylic acids Corrosion Decomposition Dissolution Hydrogen Iron Naphthalene Reaction kinetics ...
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羧酸（Carboxylicacids）新编有机化学 235 5.2羧酸 5.2.1 羧酸的结构特征 含有羧基（-CO 2H ）官能团的化合物称为羧酸。羧基组成中含一个羰基和一个羟基，但它的性质与只含有羰基的醛酮有较大差异。这是由于羧酸中羰基（C=O ）п轨道与羟基（OH ）氧上的p 轨道发生p-π共轭，从而消弱了C=O 双键，增强...
Michael reaction of conjugated nitro olefins with carboxylic acid dianions and with ester enolates: new synthesis of .gamma.-keto acids and .gamma.-keto es... M Miyashita,R Yamaguchi,A Yoshikoshi - 《Journal of Organic Chemistry》 被引量: 62发表: 1984年 Michael reaction of conjugated nitro ...
In this study we confirmed previous reports that free PCA is converted to 2-hydroxy-phenazine-1-carboxylic acid (2-OH-PCA) by the action of a single enzyme PhzO, and particularly demonstrate that this reaction is dependent on NADP(H) and Fe3+. Fe3+ enhanced the conversion from PCA to ...
(molar ratio) was 1:1.2,cyclization time was 16 h at room temperature and deamination was carried out with hydrochloric acid and sodium nitrite in ice water bath,followed by hydrolysis with 10% NaOH.the yield of target product was 97.1%.The structure of the product was confirmed by MS,1H ...
carboxylic acid Thesaurus Medical Acronyms Encyclopedia Wikipedia Related to carboxylic acid:carboxylic acid derivatives car·box·yl·ic acid (kär′bŏk-sĭl′ĭk) n. An organic acid that contains one or more carboxyl groups. American Heritage® Dictionary of the English Language, Fifth Editi...
3-Hydroxy-1-AdaMantane Carboxylic Acid 1.2 Synonyms (5R,7R)-3-Hydroxy-1-adamantanecarboxylate; 1-Adamantanecarboxylic acid; 1-carboxy-3-hydroxyadamantane; 1-Hydroxy-3-Adamantane Carboxylic Acid; 1-HYDROXYADAMANTANE-3-CARBOXYLIC ACID; 3-Carboxyadamantan-1-ol; 3-Hydroxy-1-Adamantanecarboxylic Acid; ...
一、试剂基团反应特点(Reagent group reaction characteristics): 6-Rhodamine X carboxylic acid 为红色固体,ROX也叫Rhodamine 101,是Rhodamine X(或者X-Rhodamine)的缩写,名称中的X表示罗丹明胺基被环化取代。在荧光染料领域,ROX常常代指是带5/6羧酸结构的ROX衍生物,该羧酸结构可用于荧光染料的活化与标记。ROX是实验...