Question

Provide a series of steps through which 2-methylbutane is converted into 2-methylbut-1-ene:

a) Dehydration
b) Halogenation
c) Hydrogenation
d) Oxidation

Answer 1

The series of steps to convert 2-methylbutane into 2-methylbut-1-ene involves dehydration, halogenation, hydrogenation, and oxidation.

Step-by-step explanation:

The series of steps to convert 2-methylbutane into 2-methylbut-1-ene are as follows:

1. Dehydration: React 2-methylbutane with a strong acid, such as concentrated sulfuric acid (H2SO4) or phosphoric acid (H3PO4), to remove a molecule of water and form 2-methylbut-2-ene.
2. Halogenation: React 2-methylbut-2-ene with a halogen, such as chlorine (Cl2) or bromine (Br2), to replace one hydrogen atom with a halogen atom and form 2-chloro-2-methylbut-2-ene or 2-bromo-2-methylbut-2-ene.
3. Hydrogenation: React 2-chloro-2-methylbut-2-ene or 2-bromo-2-methylbut-2-ene with hydrogen (H2) in the presence of a catalyst, such as palladium (Pd) or platinum (Pt), to replace the halogen atom with a hydrogen atom and form 2-chloro-2-methylbutane or 2-bromo-2-methylbutane.
4. Oxidation: React 2-chloro-2-methylbutane or 2-bromo-2-methylbutane with an oxidizing agent, such as potassium permanganate (KMnO4) or sodium dichromate (Na2Cr2O7), to replace the chlorine or bromine atom with a hydroxyl group (-OH) and form 2-methylbut-1-ene.