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Carboxylate ion Acrylate ion. In organic chemistry, a carboxylate is the conjugate base of a carboxylic acid, RCOO − (or RCO − 2). It is an anion, an ion with negative charge. Carboxylate salts are salts that have the general formula M(RCOO) n, where M is a metal and n is 1, 2,....
Unlike acid-catalyzed ester hydrolysis, it is not an equilibrium reaction and proceeds to completion. Hydroxide ion attacks the carbonyl carbon to give a tetrahedral intermediate, which then expels an alkoxide ion. The resulting carboxylic acid quickly protonates the alkoxide ion to give a carboxylate ion and an alcohol. [1]
From preformed carboxylic acid, the following routes have been demonstrated: [5] acid-base reactions: L n MOR' + RCO 2 H → L n MO 2 CR + R'OH protonolysis: L n Malkyl + RCO 2 H → L n MO 2 CR + alkane oxidative addition: L n M + RCO 2 H → L n (H)MO 2 CR. From preformed carboxylate, salt metathesis reactions are common: L n MCl + RCO 2 Na ...
In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group (−C(=O)−OH) [1] attached to an R-group. The general formula of a carboxylic acid is often written as R−COOH or R−CO 2 H, sometimes as R−C(O)OH with R referring to an organyl group (e.g., alkyl, alkenyl, aryl), or hydrogen, or other groups ...
Carboxylation is a chemical reaction in which a carboxylic acid is produced by treating a substrate with carbon dioxide. [1] The opposite reaction is decarboxylation.In chemistry, the term carbonation is sometimes used synonymously with carboxylation, especially when applied to the reaction of carbanionic reagents with CO 2.
Decarboxylation. Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide (CO 2).Usually, decarboxylation refers to a reaction of carboxylic acids, removing a carbon atom from a carbon chain.
DCC (dicyclohexylcarbodiimide) is used to activate the carboxylic acid to further reaction. 4-Dimethylaminopyridine (DMAP) is used as an acyl-transfer catalyst. [16] Another method for the dehydration of mixtures of alcohols and carboxylic acids is the Mitsunobu reaction: RCO 2 H + R'OH + P(C 6 H 5) 3 + R 2 N 2 → RCO 2 R' + OP(C 6 H 5) 3 + R ...
The Varrentrapp reaction, also named Varrentrapp degradation, is a name reaction in the organic chemistry. It is named after Franz Varrentrapp, who described this reaction in 1840. [ 1 ] The reaction entails the degradation of an unsaturated carboxylic acid into a saturated acid with two fewer carbon atoms and acetic acid .