Triethylamine → Tert-butyl (diphenoxyphosphoryl)acetate

참여 물질

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To a solution of diphenylphosphite (2.25 mL) in dichloromethane at 0° C. was added t-butylbromoacetate (1.48 mL) followed by triethylamine (1.95 mL). The mixture was stirred at 0° C. for 15 min and then at rt for 1 h before being quenched with water and extracted into ethyl acetate, dried over MgSO4 and concentrated. The residue was purified by silica gel chromatography eluting with hexane/ethyl acetate to give the title compound. 1H NMR (500 MHz, CDCl3): δ 7.40-7.18 (m, 10H); 3.22 (s, 1H); 3.18 (s, 1H); 1.50 (s, 9H).

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