Cymene
(Redirected from
Cymenes
)Cymene describes
| Cymenes | |||
| Name | o-Cymene | m-Cymene | p-Cymene |
|---|---|---|---|
| Structural formula |  |
 |
|
CAS number
|
527-84-4 | 535-77-3 | 99-87-6 |
| melting point | -71.54 | -63.75 | -67.94 |
| boiling point (°C) | 178.15 | 175.05 | 177.10 |
Production and reactions
m- and p-Cymene are prepared by alkylation of toluene with propylene:
- CH3C6H5 + 2 CH3CH=CH2 → CH3C6H4CH(CH3)2
These alkylations are catalyzed by various
aluminium trichloride
.
m- and p-Cymene are mainly of interest as precursors to the respective
Hock rearrangements.[1]
References
- ^ ISBN 9783527306732.
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