Ethylenediamine → HCID 2989257、化合物

反応式

Br[C:2]1[CH:14]=[CH:13][C:5]([C:6]([NH:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])=[C:4]([F:15])[CH:3]=1.[Cu][C:17]#[N:18].C(N)CN>CN(C=O)C>[C:9]([NH:8][C:6](=[O:7])[C:5]1[CH:13]=[CH:14][C:2]([C:17]#[N:18])=[CH:3][C:4]=1[F:15])([CH3:12])([CH3:11])[CH3:10]

参加物

実験手順

Combine 4-bromo-N-tert-butyl-2-fluoro-benzamide (1.0 g, 3.65 mmol) and copper(I) cyanide (0.7 g, 7.29 mmol) in anhydrous DMF (10 mL) and reflux for 17 h. Cool the reaction mixture to ambient temperature and treat with 50% (v/v) aqueous ethylenediamine (20 mL). Extract the reaction mixture with diethyl ether (3×10 mL), combine the organic extracts, wash with brine (2×10 mL) and dry the organic layer over Na2SO4. Evaporate the solvent and purify by chromatography on silica gel eluting with hexane/EtOAc (1:0, 9:1, 4:1, 7:3 and 3:2) to obtain the desired intermediate as a white solid (0.6 g, 77%). MS (ES+) m/z: 221 (M+H)+.