2-Naphthol → (2-(Naphthalen-2-yloxy)ethyl)acetamide

関与物質

反応条件

反応手順

A 3-neck round bottom flask was charged with 2-methyl-2-oxazoline (5.9 mL, 69.4 mmol) followed by 2-naphthol (10.0 g, 69.4 mmol) at room temperature. The resulting mixture was heated to reflux and stirred for 6 h. Reaction was monitored by TLC analysis. Additional 2-methyl-2-oxazoline (2.5 mL, 29.4 mmol) was added to ensure complete conversion of the 2-naphthol and the reaction mixture was heated to reflux for 16 additional hours. The reaction mixture was cooled to 70° C. then poured into ethyl acetate (100 mL) and stirred for 15 min. The resulting slurry was filtered and washed with ethyl acetate (25 mL). The filter cake was further dried under vacuum to afford -(2-(naphthalen-2-yloxy)ethyl)acetamide as an off white solid (12.35 g, 77.7% yield). 1H NMR (DMSO-d6, 400 MHz) δ 8.179-8.126 (m, 1H), 8.84-7.79 (m, 3H), 7.7.48-7.43 (m, 1H), 7.37-7.32 (m, 2H), 7.18 (dd, j=2.59 Hz, 8.97 Hz, 1H) 4.11 (t, j=5.66, 2H), 3.48 (q, j=5.90 Hz, 2H), 1.85 (s, 3H).

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