Trimellitic anhydride → HCID 21884333, compound

HRID 722487Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[C:4]([C:10]2[O:11][C:12]3[CH:18]=[CH:17][CH:16]=[CH:15][C:13]=3[N:14]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH3:9].[CH:19]1[C:24]([C:25]([OH:27])=[O:26])=[CH:23][C:22]2[C:28]([O:30][C:31](=O)[C:21]=2[CH:20]=1)=[O:29]>>[CH3:9][O:8][C:7]1[CH:6]=[CH:5][C:4]([C:10]2[O:11][C:12]3[CH:18]=[CH:17][CH:16]=[CH:15][C:13]=3[N:14]=2)=[CH:3][C:2]=1[N:1]1[C:28](=[O:29])[C:22]2[C:21](=[CH:20][CH:19]=[C:24]([C:25]([OH:27])=[O:26])[CH:23]=2)[C:31]1=[O:30]

Participants

Reactant 2

HCID 11089Trimellitic anhydride

HCID 735944HCID 735944, compound

Product 1

HCID 21884333HCID 21884333, compound

Procedure

Prepared by the method of Example 1b), from 2-(3-amino-4-methoxyphenyl)benzoxazole (55 mg, 0.23 mmol) and 1,2,4-benzenetricarboxylic anhydride (50 mg, 0.26 mmol) the title compound was obtained, 64 mg (67%). 1H NMR (DMSO) δ 8.45(dd, 1H), 8.32(m, 3H), 8.12(d, 1H), 7.78(m, 2H), 7.49(d, 1H), 7.41(m, 2H), 3.88(s, 3H). MS 413 m/z (M−H)−.

Sources & evidence

ORD record: ord-579c89d8bdc24c0a87a45ceb7579dc2a
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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