Potassium Carbonate → 2,6-Dimethylnaphthalene

HRID 618477

Reaction equation

HRID 618477 reaction equation
[CH3:1][CH:2]([CH2:11][CH3:12])[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[CH:6][CH:5]=1.CC(CC)=CC1C=CC(C)=CC=1.C([O-])([O-])=O.[K+].[K+]>[O-2].[Cr+3].[O-2].[O-2].[Cr+3]>[CH3:1][C:2]1[CH:11]=[CH:12][C:5]2[C:4](=[CH:9][CH:8]=[C:7]([CH3:10])[CH:6]=2)[CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 10877446p-(2-Methylbutyl)tolueneHCID 542935171-Methyl-4-(2-methylbut-1-en-1-yl)benzene

Product 1

HCID 113872,6-Dimethylnaphthalene

Reagents, catalysts & solvents 1

HCID 165971Chromium oxideCatalyst

Procedure

contacting p-(2-methylbutyl)toluene or p-(2-methylbutenyl)toluene under dehydrocyclization conditions with a catalyst comprising supported chromium oxide modified with K2CO3 to produce 2,6-dimethylnaphthalene with simultaneous fragmentation of C12-alkylindanes or -indenes.

Sources & evidence

ORD record
ord-002e8e07cba648c48dc795d0b8a21791
Source dataset
uspto-grants-1999_09
Patent number
US05952534

Linked notes

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