4-Fluorobenzoyl chloride → (4-Fluorophenyl)[2-methoxy-5-(2,6-dimethyl-4-nitrophenoxy)phenyl]methanone

Beteiligte Stoffe

Reaktionsschritte

To a solution of 4.5 g (16.5 mmol) of 3,5-dimethyl4-(4'-methoxyphenoxy)nitrobenzene and 6.63 g (41.8 mmol) of p-fluorobenzoyl chloride in 100 ml methylene chloride is added 15.8 g (83.3 mmol) of titanium tetrachloride. The reaction mixture is stirred for 8 days at room temperature, then poured into ice water (300 ml) and stirred 2 hours. The organic layer is separated, washed with 5% aqueous sodium carbonate, water, dried (CaSO4) and evaporated. The residue is triturated with ether-petroleum ether and recrystallized from methanol to give (4-fluorophenyl)[2-methoxy-5-(2,6-dimethyl-4-nitrophenoxy)phenyl]methanone, m.p. 167°-168°.

Herkunft & Nachweise