Diethylamine → 5-bromo-N,N-diethyl-2-(2-fluoropyridin-3-yloxy)benzamide

反応式

[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:11][C:12]2[C:13]([F:18])=[N:14][CH:15]=[CH:16][CH:17]=2)=[C:6]([CH:10]=1)[C:7]([OH:9])=O.[CH2:19]([NH:21][CH2:22][CH3:23])[CH3:20].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>CN(C=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:11][C:12]2[C:13]([F:18])=[N:14][CH:15]=[CH:16][CH:17]=2)=[C:6]([CH:10]=1)[C:7]([N:21]([CH2:22][CH3:23])[CH2:19][CH3:20])=[O:9]

参加物

実験手順

A mixture of crude 5-bromo-2-(2-fluoropyridin-3-yloxy)benzoic acid (8.00 g, 25.6 mmol), diethylamine (6.63 mL, 64.1 mmol) and TBTU (8.23 g, 25.6 mmol) in 8 mL of DMF was stirred overnight. The reaction was quenched with Sat. NaHCO3, extracted with EA/H=2:1, washed with brine, dried over Na2SO4, filtered and evaporated to dryness. CC (DCM to DCM/EA 100:5 to 100:10 to 100:20 to 3:1) gave 5-bromo-N,N-diethyl-2-(2-fluoropyridin-3-yloxy)benzamide as a yellow solid.