Water → 2-(4-Bromophenyl)-3,3,3-trifluoronitropropene
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=O)[C:9]([F:12])([F:11])[F:10])=[CH:4][CH:3]=1.[CH3:14][N+:15]([O-:17])=[O:16].O>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:9]([F:12])([F:11])[F:10])=[CH:14][N+:15]([O-:17])=[O:16])=[CH:4][CH:3]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A stirred solution of 4′-bromo-2,2,2-trifluoroaceto-phenone (0.392 g, 2.00 mmol) and CH3NO2 (0.488 g, 8.0 mmol) in dry toluene (70 mL) containing N,N-diethylenediamine (30 mmol) is heated at reflux with a Dean and Stark trap until complete removal of H2O. The cooled solution is washed with 5% aqueous HCl, dried over MgSO4, filtered, evaporated in vacuo and the resulting residue when purified by chromatography gives the title compound.