Trimellitic anhydride → HCID 21884569, compound

HRID 722616Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[C:4]([C:8]2[O:9][C:10]3[C:16]([C:17]([OH:19])=[O:18])=[CH:15][CH:14]=[CH:13][C:11]=3[N:12]=2)[CH:5]=[CH:6][CH:7]=1.[CH:20]1[C:25]([C:26]([OH:28])=[O:27])=[CH:24][C:23]2[C:29]([O:31][C:32](=O)[C:22]=2[CH:21]=1)=[O:30]>>[C:26]([C:25]1[CH:24]=[C:23]2[C:22](=[CH:21][CH:20]=1)[C:32](=[O:31])[N:1]([C:2]1[CH:3]=[C:4]([C:8]3[O:9][C:10]4[C:16]([C:17]([OH:19])=[O:18])=[CH:15][CH:14]=[CH:13][C:11]=4[N:12]=3)[CH:5]=[CH:6][CH:7]=1)[C:29]2=[O:30])([OH:28])=[O:27]

Participants

Reactant 2

HCID 11089Trimellitic anhydride

HCID 21884367HCID 21884367, compound

Product 1

HCID 21884569HCID 21884569, compound

Procedure

Prepared by the method of Example 1b), from 2-(3-aminophenyl)benzoxazole-7-carboxylic acid (100 mg, 0.39 mmol) and 1,2,4-benzenetricarboxylic anhydride (75 mg, 0.39 mmol) the title compound was obtained, (148 mg, 32%). 1H NMR (DMSO) δ 8.50(m, 2H), 8.39(m, 2H), 8.17(m, 2H), 8.01(m, 1H), 7.88(m, 2H), 7.63(t, 1H). MS 429 m/z (M+H)+.

Sources & evidence

ORD record: ord-bea289bbac4a4b8685399bf3755b320d
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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