反应详情

Following the procedure described for compound 47, from 4-[(4-bromophenyl)(tetrahydro-4H-pyran-4-ylidene)methyl]phenol (46) (0.101 g, 0.293 mmole), tert-butyl methacrylate (0.095 mL, 0.585 mmole), P(o-tolyl)3 (0.0092 g, 0.0302 mmole), Et3N (0.125 mL, 0.897 mmole), Pd(OAc)2 (0.0038 g, 0.0169 mmole) and DMF (1.5 mL) yielded compound 59 (0.070 g, 59%) as a white solid. 1H NMR (CDCl3): δ 7.55 (s, 1H), 7.31 (d, J=8.1 Hz, 2H), 7.11 (d, J=8.1 Hz, 2H), 6.98 (d, J=8.5 Hz, 2H), 6.76 (d, J=8.5 Hz, 2H), 4.91 (s, 1H), 3.73 (m, 4H), 2.41 (m, 4H), 1.58 (s, 3H), 1.54 (s, 9H).