Ester - Wikipedia
网页Ester. An ester of a carboxylic acid. R stands for any group (typically hydrogen or organyl) and R ′ stands for any organyl group. In chemistry, an ester is a functional group derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (R ...
Ester | Description, Types, & Reactions | Britannica
网页2024年8月21日 · Ester, any of a class of organic compounds that react with water to produce alcohols and organic or inorganic acids. Esters derived from carboxylic acids are the most common. Learn about the different types and reactions of …
15.5: Esters - Structures and Names - Chemistry LibreTexts
网页2022年9月15日 · Identify the general structure for an ester. Use common names to name esters. Name esters according to the IUPAC system. Esters have the general formula RCOOR ′, where R may be a hydrogen atom, an alkyl group, or an aryl group, and R′ may be an alkyl group or an aryl group but not a hydrogen atom.
21.6 Chemistry of Esters - Organic Chemistry - OpenStax
网页21.6 Chemistry of Esters. Highlights. Esters are among the most widespread of all naturally occurring compounds. Many simple esters are pleasant-smelling liquids that are responsible for the fragrant odors of fruits and flowers. For example, methyl butanoate is found in pineapple oil, and isopentyl acetate is a constituent of banana oil.
酯 - 维基百科，自由的百科全书
网页酯 zhǐ （英語： ester[a]）旧称 酉鹽，是指 有机化学 中 醇 與 羧酸 或 无机 含氧酸 发生 酯化反应 生成的产物。 酯類除了 羧酸酯 外，也有 硝酸 、 硫酸 等無機含氧酸酯 [1]。 字源. 本字由表意的“酉”（意为含 氧 的 官能团）和“旨”（表音）组成。 应注意与“ 脂 ”的区别，脂 (三酸甘油酯)是酯之一種，由 甘油 (丙三醇)與 脂肪酸 (長鏈 羧酸)結合而成，所以脂不是等於酯。 物理性质. 低級酯（低分子量的 羧酸 與 醇 製成的酯），揮發性大，難溶於水，易溶於乙 …
an introduction to esters - chemguide
网页What are esters? Esters are derived from carboxylic acids. A carboxylic acid contains the -COOH group, and in an ester the hydrogen in this group is replaced by a hydrocarbon group of some kind. This could be an alkyl group like methyl or ethyl, or one containing a benzene ring like phenyl. A common ester - ethyl ethanoate.
15.6 Esters: Structures and Names - Lumen Learning
网页Learning Objectives. Identify the general structure for an ester. Use common names to name esters. Name esters according to the IUPAC system. Esters have the general formula RCOOR′, where R may be a hydrogen atom, an alkyl group, or an aryl group, and R′ may be an alkyl group or an aryl group but not a hydrogen atom.
What Is an Ester in Chemistry? - ThoughtCo
网页2020年1月4日 · An ester is an organic compound where the hydrogen in the compound's carboxyl group is replaced with a hydrocarbon group. Esters are derived from carboxylic acids and (usually) alcohol. While carboxylic acid has the -COOH group, the hydrogen is replaced by a hydrocarbon in an ester.
ESTER中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页ester 在英语-中文（简体）词典中的翻译. noun [ C ] chemistry specialized uk / ˈes.tə r/ us / ˈes.tɚ / Add to word list. a chemical compound produced by a reaction between an acid and an alcohol, in which the hydrogen of the acid has been replaced by an alkyl group of atoms. 酯.
Ester Definition, Examples And Facts | Chemistry Dictionary
网页2017年11月14日 · Ester Definition. Esters are the derivatives of carboxylic acids in which the hydrogen of carboxylic acid (-COOH) has been replaced by an alkyl group (-R) like methyl, ethyl or a benzene ring like phenyl. The ester functional group may be represented as -COOR. Esters are found in flowers and fruits …