Tetralin → Naphthalene

HRID 345747Notes

Reaction equation

HRID 345747 reaction equation
[CH2:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1.[H][H]>>[CH:9]1[C:10]2[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=2)[CH:6]=[CH:7][CH:8]=1

Participants

3

Reactant 2

HCID 8404Tetralin2×HCID 178418361HCID 178418361, compound

Product 1

HCID 931Naphthalene

Procedure

In practice tetralin together with the catalyst to be tested is introduced into a small unstirred autoclave. No hydrogen is added to the autoclave. The autoclave is heated to an elevated temperature, and the tetralin dehydrogenates as the equilibrium shifts towards a new value characteristic of the elevated temperature used. The rate at which the system moves towards equilibrium and hence the quantity of naphthalene produced in a given time depends upon the activity of the catalyst. The quantity of naphthalene produced is determined by GLC or by 1H-nuclear magnetic resonance (1H-nmr). The quantity of naphthalene produced is then expressed as a percentage of that produced when using a fresh unused catalyst to obtain a measure of the catalyst activity.

Workup

  1. temperatureThe autoclave is heated to an elevated temperature

Sources & evidence

ORD record
ord-efd34b31576740b89528afbc2a6972ae
Source dataset
uspto-grants-1991_10
Patent number
US05059539

Reaction notes

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