3-Bromo-o-toluidine → HCID 66605859、化合物

反応式

[Br:1][C:2]1[C:3]([CH3:9])=[C:4]([CH:6]=[CH:7][CH:8]=1)[NH2:5].C[Al](C)C.[O:14]=[C:15]1[C:23]2[C:18](=[CH:19][CH:20]=[C:21]([C:24]#[N:25])[CH:22]=2)[CH2:17][O:16]1>C(Cl)Cl>[Br:1][C:2]1[C:3]([CH3:9])=[C:4]([NH:5][C:15](=[O:14])[C:23]2[CH:22]=[C:21]([C:24]#[N:25])[CH:20]=[CH:19][C:18]=2[CH2:17][OH:16])[CH:6]=[CH:7][CH:8]=1

参加物

実験手順

Step 1 A solution of 3-bromo-2-methylaniline (0.67 g, 3.60 mmol) in DCM (18 mL) was treated dropwise with trimethylaluminum (2 M in toluene, 1.801 mL, 3.60 mmol) and the resulting solution was stirred at rt for 30 min. A solution of 3-oxo-1,3-dihydroisobenzofuran-5-carbonitrile (0.573 g, 3.60 mmol) in DCM (18.00 mL) was added and the resulting mixture was stirred at rt overnight. The mixture was diluted with DCM, washed with an aqueous solution of sodium potassium tartrate (Fehling's Reagent II) and water, then was dried and concentrated. The residue was purified by column chromatography (eluting with a gradient from 80:20 hexane-EtOAc to EtOAc) to provide N-(3-bromo-2-methylphenyl)-5-cyano-2-(hydroxymethyl)benzamide as a white solid (170 mg, 14%) which was used without further purification. Mass spectrum m/z 345, 347 (M+H)+.