Aniline → 2-Phenylaminocarbonyl-7-methoxybenzofuran
Reaction equation
[CH3:1][O:2][C:3]1[C:11]2[O:10][C:9]([C:12]([OH:14])=O)=[CH:8][C:7]=2[CH:6]=[CH:5][CH:4]=1.[NH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>>[C:16]1([NH:15][C:12]([C:9]2[O:10][C:11]3[C:3]([O:2][CH3:1])=[CH:4][CH:5]=[CH:6][C:7]=3[CH:8]=2)=[O:14])[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1Participants
3
Procedure
Substantially the same procedure as in Example 219 was repeated using a starting material, 7-methoxybenzofuran-2-carboxylic acid, and aniline to give N-phenyl-7-methoxybenzofuran-2-carboxamide (Compound 249a). Successively, it was formylated to give N-phenyl-4-formyl-7-methoxybenzofuran-2-carboxamide (Compound 249b), then compound 249b was reacted with methylamine hydrochloride to give compound 249 as a white solid.
Sources & evidence
- ORD record
- ord-a3ef85b286d545299efc6677d19b39e4
- Source dataset
- uspto-grants-2004_04
- Patent number
- US06716987B1
Reaction notes
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