Acetic Acid → 4,4'-Diaminodiphenyl Ether
Reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)([O-])=O.[C:10]([OH:13])(=O)[CH3:11]>>[CH:9]1[C:4]([NH2:1])=[CH:5][CH:6]=[C:7]([O:13][C:10]2[CH:11]=[CH:9][C:4]([NH2:1])=[CH:5][CH:6]=2)[CH:8]=1Participants
3
Reactant 2
Product 1
Procedure
Into a 100 ml four-necked flask provided with a stirrer, an inlet tube for the supply of an inert gas and an outlet pipe for the discharge of said inert gas 0.654 g of pyromellitic anhydride, 0.60 g of 4,4'-diaminodiphenyloxide, 0.45 ml of acetic acid and 10.0 ml of nitrobenzene. The reaction mixture is heated to 120° C with stirring and passing an inert gas and maintained at this temperature for 1 hour. On completion of the reaction and cooling the reaction mixture, the precipitated polymer is filtered off, repeatedly washed with acetone and ethanol and dried in vacuum at 120° C ηinh in sulfuric acid is 0.67 dl/g. (0.05 g of the polymer in 10 ml of the solvent).
Sources & evidence
- ORD record
- ord-04c7ff4a2be84e90b64a3379b16a2865
- Source dataset
- uspto-grants-1976_10
- Patent number
- US03988303
Reaction notes
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