2-(chloromethyl)prop-2-enoxymethylbenzene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: LiBr (2.7 g, 31.6 mmol) was flame dried under vacuum and then cooled to room temperature. TBABr (255 mg, 0.79 mmol), (2-chloromethyl-allyloxymethyl)-benzene (3.1 g, 15.8 mmol) and THF (5 mL) were then added and the suspension was stirred at 60° C. for 2 h. The mixture was filtered through Celite and the solvent was removed in vacuo to give the title compound (3.4 g) as a colourless oil which was used in the next step without further purification. 1H NMR (CDCl3): 7.47-7.30 (5H, m), 5.47-5.33 (1H, m), 5.30 (1H, q), 4.56 (2H, s), 4.19 (2H, s), 4.08 (2H, s). dried under vacuum The mixture was filtered through Celite the solvent was removed in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Benzyl alcohol (3.5 mL, 33.6 mmol) and DMF (8 mL) were added to a suspension of NaH (60% suspension in mineral oil, 1.8 g, 43.7 mmol, washed with hexane before use) in THF (35 mL). The resulting mixture was stirred for 30 minutes at room temperature and then 1 h at reflux. The mixture was cooled to room temperature and slowly added over 1 h to a solution of 3-chloro-2-chloromethyl-propene (4.2 g, 33.6 mmol) in THF (40 mL). The reaction was stirred at room temperature for 18 h, quenched with brine/water (1:1) and extracted with Et2O. The organic phase was dried (MgSO4), filtered and concentrated. Chromatography (SiO2, EtOAc:Petrol 1:9) to give the title compound (3.1 g) as a colourless oil. 1H NMR (CDCl3): 7.46-7.29 (5H, m), 5.35 (1H, s), 5.30 (1H, d), 4.56 (2H, s), 4.24-4.06 (4H, m). 1 h at reflux The mixture was cooled to room temperature The reaction was stirred at room temperature for 18 h quenched with brine/water (1:1) extracted with Et2O The organic phase was dried (MgSO4) filtered concentrated