反应详情

To a solution of 6-methoxynaphthalen-1-ol (4.45 g, 25.6 mmol), (5-bromo-2-iodophenyl)methanol (8.0 g, 25.6 mmol) and triphenylphosphine (7.4 g, 28.2 mmol) in tetrahydrofuran (128 mL) at 0° C. was added diisopropyl azodicarboxylate (5.54 mL, 28.2 mmol). The reaction was allowed to warm to room temperature overnight. After 15 hours, more triphenylphosphine (1.3 g, 5 mmol) and diisopropyl azodicarboxylate (0.99 mL, 5 mmol) were added and the reaction was stirred at room temperature. After 24 hours, the reaction was concentrated and recrystallized from CH2Cl2 and hexanes to yield 1-(5-bromo-2-iodobenzyloxy)-6-methoxynaphthalene (7.82 g, 65%). The mother liquor was purified by flash column chromatography to yield more product (790 mg, 6.5%).

1. waitAfter 24 hours
2. concentrationthe reaction was concentrated
3. customrecrystallized from CH2Cl2 and hexanes