Trimellitic anhydride → HCID 21884606, compound

HRID 722526Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([O:23][CH2:24][CH2:25][O:26][CH3:27])=[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:28]1[C:33]([C:34]([OH:36])=[O:35])=[CH:32][C:31]2[C:37]([O:39][C:40](=O)[C:30]=2[CH:29]=1)=[O:38]>>[CH3:27][O:26][CH2:25][CH2:24][O:23][C:5]1[CH:4]=[CH:3][C:2]([N:1]2[C:37](=[O:38])[C:31]3[C:30](=[CH:29][CH:28]=[C:33]([C:34]([OH:36])=[O:35])[CH:32]=3)[C:40]2=[O:39])=[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

Participants

Reactant 2

HCID 11089Trimellitic anhydride

HCID 21884485HCID 21884485, compound

Product 1

HCID 21884606HCID 21884606, compound

Procedure

Prepared by the method of Example 1b), from 2-(5-amino-2-(2-methoxyethoxy)phenyl)-5-phenylbenzoxazole (171 mg, 0.47 mmol) and 1,2,4-benzenetricarboxylic anhydride (90 mg, 0.47 mmol) the title compound was obtained (141 mg, 56%). 1H NMR (DMSO) δ 8.57(dd, 1H), 8.46(s, 1H), 8.34(d, 1H), 8.24(d, 1H), 8.19(d, 1H), 7.97(d, 1H), 7.85(m, 4H), 7.63(t, 3H), 7.53(t, 1H), 4.51(t, 2H), 3.95(t, 2H), 3.52(s, 3H). MS 535 m/z (M+H)+.

Sources & evidence

ORD record: ord-a631c2b267b243a6be4d28fbb81b0e47
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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