Chemistry > Carboxylic Acids and Derivatives > 16.0 Ester (RCOOR)
Carboxylic Acids and Derivatives
1.0 Nomenclature
2.0 General Methods of Preparation
3.0 Physical Properties of Carboxylic Acid
4.0 Chemical Properties of Carboxylic Acid
5.0 Ortho Effect
6.0 Reaction Involving Cleavage of —OH Group
6.1 Esterification
6.2 Formation of acid chloride
6.3 Formation of Acid Anhydride
6.4 Formation of Amides
7.0 Reaction Involving —COOH Group
8.0 Hell-Volhard-Zelinsky Reaction
9.0 Heating of Dicarboxylic Acids
10.0 Abnormal Behaviour of Formic Acid
11.0 Derivatives of Carboxylic Acid
12.0 Relative Reactivity of Acid Derivatives
13.0 Resonance Effect
14.0 Acyl Chloride RCOCl
15.0 Amides
16.0 Ester (RCOOR)
17.0 Acid Anhydrides
18.0 Method of Preparation
18.1 Acylation
18.2 Sodium salt of carboxylic acids also react with acyl chlorides to give
18.3 Cyclic anhydrides
18.4 Chemical Properties
16.1 Chemical Properties
6.2 Formation of acid chloride
6.3 Formation of Acid Anhydride
6.4 Formation of Amides
18.2 Sodium salt of carboxylic acids also react with acyl chlorides to give
18.3 Cyclic anhydrides
18.4 Chemical Properties
1. Conversion to other esters: Transesterifications
2. Conversion to amides
3. Reaction with Grignard Reagent
4. Reduction of ester
5. Reaction of $N{H_3}$ with keto ester
Mechanism:
Attack will occur at carbonyl group first because of high degree of $+ve$ charge on carbonyl carbon atom.
6. Acyloin condensation
Mechanism: It is the intermolecular, sodium promoted condensation of two moles of ester or the entera molecular condensation of a ester to $\alpha $-hydrox ketone (acyloin)
7.