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ChemicalBook CAS DataBase List 2-Phenyl-1-propene

2-Phenyl-1-propene synthesis

14synthesis methods
α-Methylstyrene (AMS) is produced as a by-product in the production of phenol and acetone from cumene.
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Yield:98-83-9 97%

Reaction Conditions:

aluminum(III) oxide in Isopropylbenzene at 200; under 7500.75 Torr;Product distribution / selectivity;

Steps:

1

A cumene solution (containing 0 ppm by weight of propylene oxide) containing 25% by weight of cumyl alcohol and hydrogen were passed through a fixed bed flow reactor in which activated alumina was packed, at a rate of 1.6g/minute and 105 Ncc/minute, respectively. In addition, LHSV(Liquid Hourly Space Velocity) was 9 h-1, the pressure was 1.0 MPaG, and the temperature was 200°C. The dehydration conversion of cumyl alcohol in the obtained reaction mixture was 97%.

References:

EP1674439,2006,A1 Location in patent:Page/Page column 4

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