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Propionic acid with Br2 | P yields a dibromo product. Its structure would be:
Option: 1
Option: 2
CH2Br - CH2 - COBr
Option: 3
Option: 4
CH2 Br - CHBr - COOH
Answers (1)
This reaction is called Hell-Volhard-Zelinsky (HVZ) reduction. This reaction is example of α H-substitution. Br2 in presence of P attacks on the alpha carbon atom of acid and alpha hydrogen is substituted by bromine.
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