反应详情

6-(3-Chlorophenyl)-4-methyl-4-phenyl-1,4-dihydro-benzo[d][1,3]oxazin-2-one was prepared, from 1-(4-amino-3′-chloro-biphenyl-3-yl)-ethanone (0.2 g, 0.82 mmol) and phenylmagnesium bromide followed by treatment with CDI in THF, as a white solid: mp 179–180° C.; 1H-NMR (CDCl3) δ 8.27 (s, 1H, D2O exchangeable), 7.51–7.57 (m, 2H), 7.28–7.45 (m, 9H), 6.92 (d, 1H, J=8.4 Hz), 2.12 (s, 3H); MS (ESI) m/z 348 ([M−H]−, 100%); Anal. Calc. For C21H16ClNO2: C, 72.10, H, 4.61, N, 4.00. Found: C, 71.72, H, 4.86, N, 3.91.