Problems and exercisesAlpha Halogenation
1. An amino acid from an acid
Which product does 3-methylbutanoic acid give in the Hell-Volhard-Zelinsky reaction (Br2, red P, then H2O)? And if that product is treated with an excess of ammonia?
2. An acid that does not react
Why does 2,2-dimethylpropanoic acid not undergo the Hell-Volhard-Zelinsky reaction?