Trimellitic anhydride → HCID 21884429, compound

HRID 722618Notes

Reaction equation

HRID 722618 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([C:10]2[O:11][C:12]3[CH:18]=[CH:17][C:16]([Br:19])=[CH:15][C:13]=3[N:14]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH3:9].[CH:20]1[C:25]([C:26]([OH:28])=[O:27])=[CH:24][C:23]2[C:29]([O:31][C:32](=O)[C:22]=2[CH:21]=1)=[O:30]>>[Br:19][C:16]1[CH:17]=[CH:18][C:12]2[O:11][C:10]([C:4]3[CH:5]=[CH:6][C:7]([O:8][CH3:9])=[C:2]([N:1]4[C:29](=[O:30])[C:23]5[C:22](=[CH:21][CH:20]=[C:25]([C:26]([OH:28])=[O:27])[CH:24]=5)[C:32]4=[O:31])[CH:3]=3)=[N:14][C:13]=2[CH:15]=1

Participants

3

Reactant 2

HCID 11089Trimellitic anhydrideHCID 10403644HCID 10403644, compound

Product 1

HCID 21884429HCID 21884429, compound

Procedure

Prepared by the method of Example 1b), from 2-(3-amino-4-methoxyphenyl)-5-bromobenzoxazole (166 mg, 0.5 mmol) and 1,2,4-benzenetricarboxylic anhydride (100 mg, 0.5 mmol) the title compound was obtained (238 mg, 93%). 1H NMR (DMSO) δ 8.44(dd, 1H), 8.32(m, 3H), 8.10(d, 1H), 8.02(d, 1H), 7.77(d, 1H), 7.57(dd, 1H), 7.48(d, 1H). MS 490.9 m/z (M−H)−.

Sources & evidence

ORD record
ord-0e3cee367c5b4844bd277951d7a91bc7
Source dataset
uspto-grants-2006_11
Patent number
US07138425B2

Reaction notes

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