Allyl bromide → 2-(Allyloxy)-1-bromo-5-methyl-3-nitrobenzene

Beteiligte Stoffe

Reaktionsschritte

To a mixture of 2-bromo-4-methyl-6-nitrophenol (7.00 g, 30.2 mmol), K2CO3 (6.26 g, 45.3 mmol) in acetone (105 mL) was added allyl bromide (3.80 ml, 45.3 mmol). The reaction mixture was stirred at room temperature overnight. It was then heated at 40° C. for 5 hrs. Inorganic salts were filtered and washed with acetone. The filtrate was concentrated to give 7.74 g (94%) of the desired product. MS (DCI/NH3) m/z: 289.0 (M+NH4)+; 1H NMR (300 MHz, CD3OD) δ ppm 2.37 (s, 3 H) 4.61 (d, J=6.10 Hz, 2 H) 5.26 (dd, J=10.51, 1.80 Hz, 1 H) 5.39 (dd, J=17.29, 1.80 Hz, 1 H) 6.09 (m, 1 H) 7.63 (s, 1 H) 7.74 (s, 1 H).

Herkunft & Nachweise