Trimellitic anhydride → HCID 21884595, compound

HRID 722524Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([O:23][CH2:24][CH3:25])=[C:6]([C:8]2[O:9][C:10]3[CH:16]=[CH:15][C:14]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=4)=[CH:13][C:11]=3[N:12]=2)[CH:7]=1.[CH:26]1[C:31]([C:32]([OH:34])=[O:33])=[CH:30][C:29]2[C:35]([O:37][C:38](=O)[C:28]=2[CH:27]=1)=[O:36]>>[CH2:24]([O:23][C:5]1[CH:4]=[CH:3][C:2]([N:1]2[C:35](=[O:36])[C:29]3[C:28](=[CH:27][CH:26]=[C:31]([C:32]([OH:34])=[O:33])[CH:30]=3)[C:38]2=[O:37])=[CH:7][C:6]=1[C:8]1[O:9][C:10]2[CH:16]=[CH:15][C:14]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)=[CH:13][C:11]=2[N:12]=1)[CH3:25]

Participants

Reactant 2

HCID 11089Trimellitic anhydride

HCID 21884447HCID 21884447, compound

Product 1

HCID 21884595HCID 21884595, compound

Procedure

Prepared by the method of Example 1b), from 2-(5-amino-2-ethoxyphenyl)-5-phenylbenzoxazole (157 mg, 0.44 mmol) and 1,2,4-benzenetricarboxylic anhydride (84 mg, 0.44 mmol) the title compound was obtained (133 mg, 60%). 1H NMR (DMSO) δ 8.50(dd, 1H), 8.40(s, 1H), 8.25(d, 1H), 8.17(m, 2H), 7.93(d, 1H), 7.80(m, 4H), 7.50(m, 4H), 4.41(q, 2H), 1.52(t, 3H). MS 505 m/z (M+H)+.

Sources & evidence

ORD record: ord-161652ccb218463da3bd698b8bdbe2ee
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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