MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryCarboxylic Acids and DerivativesPreparation of Carboxylic Acid Derivatives
In the Hofmann bromamide degradation reaction, the number of moles of NaOH and Br2 used per mole of amine produced are :
A.Four moles of NaOH and two moles of✓ Correct
B.Two moles of NaOH and two moles of
C.Four moles of NaOH and one mole of
D.One mole of NaOH and one mole of
Explanation
Hoffmann’s bromamide degradation reaction is used for the synthesis of primary amines. In this reaction, 4 moles of NaOH and 1 mole of 2 Br is required in the synthesis of primary amines. The reaction is shown below- 2 2 2 2 3 2 4 2 2 R CO NH Br NaOH R NH Na CO NaBr H O -> Thus, the correct option is (c) Four moles of NaOH and one mole of 2 Br 133. Give the order of ease of the esterification of the following acids (I) (II) (III) (IV) (a) I > II > III > IV (b) IV > III > II > I (c) II > I > IV > III (d) I > II > IV > III The order of case of the esterification reaction Carboxy
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