Trimellitic anhydride → HCID 21884437, compound

HRID 722565Notes

Reaction equation

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

Participants

Reactant 2

HCID 11089Trimellitic anhydride

HCID 21884608HCID 21884608, compound

Product 1

HCID 21884437HCID 21884437, compound

Procedure

Prepared by the method of Example 15f), from 2-(3-amino-6-propylaminophenyl)-6-methylbenzoxazole (100 mg, 0.33 mmol) and 1,2,4-benzenetricarboxylic anhydride (73 mg, 0.38 mmol) the title compound was obtained (87 mg, 58%). 1H NMR (DMSO) δ 8.47–8.40(m, 2H), 8.30(s, 1H), 8.08–8.06(m, 2H), 7.68(d, 1H), 7.56(s, 1H), 7.44(dd, 1H), 7.23(d, 1H), 7.01(d, 1H), 3.34(m, 2H), 2.46(s, 3H), 1.74(m, 2H), 1.05(t, 3H). MS 454.1 m/z (M−H)−.

Sources & evidence

ORD record: ord-9b91ccfd39734b6cb2d6648d5159d152
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07138425B2

Reaction notes

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