反应详情

温度

180 °C

A mixture of 1H-benzo[d][1,3]oxazine-2,4-dione (3.5 g) in THF (35 mL) was treated with N-hydroxy-acetamidine (1.7 g), and DIEA (8 mL). The reaction mixture was microwave heated at 180° C. for 5 minutes, concentrated and purified by silica gel chromatography to afford 2.6 g of 2-(3-methyl-[1,2,4]oxadiazol-5-yl)-phenylamine: 1H NMR (300 MHz, CDCl3) δ 8.0 (d, 1H), 7.4 (t, 1H), 6.9 (m, 2H), 6.0 (bs, 2H), 2.6 (s, 3H).

1. concentrationconcentrated
2. custompurified by silica gel chromatography