Trimellitic anhydride → HCID 21884589, compound

HRID 722541Notes

Reaction equation

[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([NH: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]([NH: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 21884330HCID 21884330, compound

Product 1

HCID 21884589HCID 21884589, compound

Procedure

Prepared by the method of Example 1b), from 2-(5-amino-2-ethylaminophenyl)-5-phenylbenzoxazole (158 mg, 0.48 mmol) and 1,2,4-benzenetricarboxylic anhydride (92 mg, 0.48 mmol) the title compound was obtained (154 mg, 64%). 1H NMR (DMSO) δ 8.42(m, 2H), 8.31(s, 1H), 8.14(d, 1H), 8.07(m, 2H), 7.83(d, 1H), 7.74(m, 3H), 7.50(m, 3H), 7.39(t, 1H), 7.04(d, 1H), 3.48(q, 2H), 1.39(t, 3H). MS 504 m/z (M+H)+.

Sources & evidence

ORD record: ord-7384b53a3e7f48fd93d9206664668772
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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