1-Butanol → Trimellitic anhydride

HRID 237188

Reaction equation

HRID 237188 reaction equation
[CH2:1](O)[CH3:2].CC([O:9][C:10](C)=[O:11])COC.CCO[Si]([O:23][CH2:24][CH3:25])(OCC)OCC.[N+]([O-])(O)=[O:27].[CH2:30]([OH:34])[CH2:31][CH2:32][CH3:33]>O>[CH:1]1[C:31]([C:30]([OH:27])=[O:34])=[CH:32][C:33]2[C:10]([O:11][C:24](=[O:23])[C:25]=2[CH:2]=1)=[O:9]

Participants

7

Reactant 5

HCID 2631-ButanolHCID 702EthanolHCID 944Nitric AcidHCID 6517TetraethoxysilaneHCID 7946Propylene glycol methyl ether acetate

Product 1

HCID 11089Trimellitic anhydride

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
81 °C

Procedure

To the solvents of 60 g ethanol and 30 g PGMEA, 33.33 g TEOS, 5.71 g VTEOS and 2.40 g PTEOS monomers were individually added. While stirring a mixture of 1.13 g 0.1N nitric acid and 18.92 g water was poured, the reaction mixture was heated to reflux at 81° C. for 4 hours before cooling down. 8.84 g butanol was added to the reaction mixture and stirred at room temperature overnight. The resulting polymer was measured to have a molecular weight of Mn=1121 amu, Mw=1723 amu analyzed using the same GPC system as mentioned above.

Workup

  1. additionwas poured
  2. temperaturethe reaction mixture was heated
  3. temperaturebefore cooling down
  4. stirringstirred at room temperature overnight

Sources & evidence

ORD record
ord-31631c81520743ecb2d1a43171b221ea
Source dataset
uspto-grants-2014_02
Patent number
US08642246B2

Linked notes

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