Triphenylphosphine → 2-Nitro-4-(trifluoromethyl)benzaldehyde
Reaktionsgleichung
[N+:1]([C:4]1[CH:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[CH:10]=[CH:9][C:5]=1[C:6](Cl)=[O:7])([O-:3])=[O:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>CC(C)=O>[N+:1]([C:4]1[CH:12]=[C:11]([C:13]([F:14])([F:15])[F:16])[CH:10]=[CH:9][C:5]=1[CH:6]=[O:7])([O-:3])=[O:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 2-nitro-4-trifluoromethylbenzoyl chloride (8.0 g) and triphenylphosphine (16.5 g) in dry acetone (75 ml) was treated with bis-(triphenylphosphine)tetrahydroboratocopper(I) (19.8 g). The resulting suspension was stirred for 1 hour, filtered and washed with diethyl ether. The filtrate was evaporated to dryness and the resulting residue was subjected to chromatography, eluting with a mixture of diethyl ether and n-hexane (1:5 v/v), to give 2-nitro-4-trifluoromethylbenzaldehyde (5.91 g) in the form of an off-white solid, m.p. 63° C.