2-Phenyl-2-propanol → Alpha-Methylstyrene

HRID 512482Notes

Reaction equation

HRID 512482 reaction equation
[C:1](O)([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)([CH3:3])[CH3:2]>O>[CH3:3][C:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)=[CH2:2]

Participants

3

Reactant 1

HCID 120532-Phenyl-2-propanol

Product 1

HCID 7407Alpha-Methylstyrene

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The dehydration step is a step of supplying cumyl alcohol obtained in the epoxidation step to a dehydration catalyst to obtain α-methyl styrene and water. Examples of catalyst to be used include acids such as sulfuric acid, phosphoric acid, and p-toluenesulfonic acid; and metal oxides such as activated alumina, titania, zirconia, silica-alumina, and zeolite, of which activated alumina is preferable in view of separation from a reaction solution, catalyst life, and selectivity.

Workup

  1. customobtained in the epoxidation step to a dehydration catalyst

Sources & evidence

ORD record
ord-be1c6bcc58e14b5585945942e4dc72ce
Source dataset
uspto-grants-2015_08
Patent number
US09102641B2

Reaction notes

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