Butylbenzene → Naphthalene

HRID 1769852Notes

Reaction equation

HRID 1769852 reaction equation
[CH3:1][CH2:2][CH2:3][CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.[CH3:12][CH2:13][CH2:14][CH2:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1>>[CH3:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[CH:5]=[CH:4][CH:3]=1.[CH:20]1[C:21]2[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH:17]=[CH:18][CH:19]=1

Participants

4

Reactant 2

HCID 7705ButylbenzeneHCID 10864Pentylbenzene2×

Product 2

HCID 931NaphthaleneHCID 70021-Methylnaphthalene

Conditions

Temperature
550 °C

Procedure

Cyclodehydrogenation was carried out in the same way as Example 1 except that n-amylbenzene (a reagent produced by Tokyo Kasei K.K., purity: 98.9%) was used in place of n-butylbenzene, and that it was gasified in a nitrogen stream and introduced into the catalyst layer maintained at 550° C., at LHSV of 0.085. The conversion ratio of n-amylbenzene was 95.5%. Also, 1-methylnaphthalene was obtained at a selectivity of 72.1%, while naphthalene was obtained at a selectivity of 11.4%.

Workup

  1. customproduced by Tokyo Kasei K.K
  2. additionintroduced into the catalyst layer

Sources & evidence

ORD record
ord-bc96e0f53e69412482de4a0234dba8d8
Source dataset
uspto-grants-1995_01
Patent number
US05382733

Reaction notes

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