Ethylbenzene → Anthracene

HRID 1086103Notes

Reaction equation

HRID 1086103 reaction equation
[CH:1]1[C:14]2[C:5](=[CH:6][C:7]3[C:12]([CH:13]=2)=[CH:11][CH:10]=[CH:9][CH:8]=3)[CH:4]=[CH:3][CH:2]=1.[CH2:15]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[CH3:16].C=CC1C=CC=CC=1>C1(C)C(C)=CC=CC=1>[CH:4]1[C:5]2[C:14](=[CH:13][C:12]3[C:7]([CH:6]=2)=[CH:8][CH:9]=[CH:10][CH:11]=3)[CH:1]=[CH:2][CH:3]=1.[CH2:16]=[CH:15][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.[CH:4]1[C:5]2[C:14](=[CH:13][C:12]3[C:7]([CH:6]=2)=[CH:8][CH:9]=[CH:10][CH:11]=3)[CH:1]=[CH:2][CH:3]=1

Participants

6

Reactant 3

HCID 7500EthylbenzeneHCID 7501StyreneHCID 8418Anthracene

Product 2

HCID 8418AnthraceneHCID 86744756HCID 86744756, compound

Reagents, catalysts & solvents 1

HCID 7237O-XyleneSolvent

Procedure

In an preferred embodiment, the adduct-forming reaction is carried out under a temperature and pressure maintained to keep the feedstock, anthracene and adduct in the liquid state. After adduction, xylene, ethylbenzene, unreacted styrene and similar volatiles are flashed off leaving molten anthracene and styrene-anthracene adduct. The remaining liquid mixture is then heated to pyrolyze the styrene-anthracene adduct and distill off the styrene. The remaining molten anthracene from this pyrolysis is cooled and recycled as a liquid back to the adduction reaction.

Workup

  1. customIn an preferred embodiment, the adduct-forming reaction
  2. temperaturemaintained

Sources & evidence

ORD record
ord-e2ea7030afc747f89c1f6e6cf0119ebc
Source dataset
uspto-grants-1991_04
Patent number
US05012034

Reaction notes

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