2,6-Di-tert-butyl-4-methylphenol → Isobutylbis(2,6-di-tert-butyl-4-methylphenoxy)aluminum

HRID 443321Notes

Reaction equation

HRID 443321 reaction equation
C([Al:5]([CH2:10][CH:11]([CH3:13])[CH3:12])CC(C)C)C(C)C.[C:14]([C:18]1[CH:23]=[C:22]([CH3:24])[CH:21]=[C:20]([C:25]([CH3:28])([CH3:27])[CH3:26])[C:19]=1[OH:29])([CH3:17])([CH3:16])[CH3:15]>CCCCC>[C:25]([C:20]1[CH:21]=[C:22]([CH3:24])[CH:23]=[C:18]([C:14]([CH3:17])([CH3:16])[CH3:15])[C:19]=1[O:29][Al:5]([O:29][C:19]1[C:20]([C:25]([CH3:26])([CH3:27])[CH3:28])=[CH:21][C:22]([CH3:24])=[CH:23][C:18]=1[C:14]([CH3:17])([CH3:16])[CH3:15])[CH2:10][CH:11]([CH3:12])[CH3:13])([CH3:28])([CH3:27])[CH3:26]

Participants

4

Reactant 2

HCID 314042,6-Di-tert-butyl-4-methylphenolHCID 16682931Triisobutylaluminum

Product 1

HCID 16688646Isobutylbis(2,6-di-tert-butyl-4-methylphenoxy)aluminum

Reagents, catalysts & solvents 1

HCID 8003PentaneSolvent3×

Procedure

Using a 250 ml balloon flask disposed in an argon atmosphere and provided with a magnetic stirrer rod, a solution of 0.493 g of triisobutylaluminium in 20 ml of pentane is introduced, and then a solution of 1.095 g of 2,6-di-t-butyl-4-methylphenol in 30 ml of pentane is introduced dropwise with agitation and at ambient temperature. After about 30 hours of reaction the pentane is evaporated under vacuum and analysis of the white solid remaining indicates that it is formed essentially by bis-(2,6-di-t-butyl-4-methylphenoxy)-isobutylaluminium. That compound is put back into solution in 5 ml of heptane.

Workup

  1. customprovided with a magnetic stirrer rod
  2. customis evaporated under vacuum and analysis of the white solid

Sources & evidence

ORD record
ord-a0b82ea0555541e3b42829d2da8cce29
Source dataset
uspto-grants-1999_04
Patent number
US05898092

Reaction notes

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