Phthalic Anhydride → 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone

HRID 256728

Reaction equation

HRID 256728 reaction equation
[C:1]1(=[O:11])[O:6][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12>C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH:8]1[C:9]([C:9]2[CH:8]=[CH:7][C:3]3[C:4]([O:6][C:1](=[O:11])[C:2]=3[CH:10]=2)=[O:5])=[CH:10][C:2]2[C:1]([O:6][C:4](=[O:5])[C:3]=2[CH:7]=1)=[O:11]

Participants

3

Reactant 1

HCID 6811Phthalic Anhydride

Product 1

HCID 754945,5'-Bi-2-benzofuran-1,1',3,3'-tetrone

Reagents, catalysts & solvents 1

HCID 167845palladium(II) acetateCatalyst

Procedure

20 g (135 mmol) of phthalic anhydride was heated at 80° C. for 5 hours in the same manner as in Example 1 except that palladium acetate was omitted. As a result, a BPDA was not formed.

Sources & evidence

ORD record
ord-ffc8f486d58846ba987f1ddfdd15aac0
Source dataset
uspto-grants-1993_11
Patent number
US05258530

Linked notes

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