Ring hydrogenation

Toluene gives methylcyclohexane through ring hydrogenation.

Reagents
Hydrogen; nickel catalyst
Conditions
Elevated temperature and hydrogen pressure
Reaction class
Ring hydrogenation
Equation
C7H8 + 3H2 -> C7H14

Overview

Toluene gives methylcyclohexane through ring hydrogenation.

Transformation

Toluene → Methylcyclohexane

Equation
C7H8 + 3H2 -> C7H14
Reactants
Toluene + 3 Hydrogen
Products
Methylcyclohexane
Reagents
Hydrogen; nickel catalyst
Environment
Elevated temperature and hydrogen pressure
Reaction class
Ring hydrogenation
Mechanism
ring hydrogenation
Evidence level
source-backed molecular example

Scope and limitations

Scope
Named toluene example; not a class-wide route prediction.
Limitations
Ring saturation retains the methyl substituent; this is not side-chain oxidation.

Related reactions

References

  1. Reactions of benzene and methylbenzeneJim Clark · Chemguide · 2025

    Named molecular transformation examples, checked 2026-09-08.