反应详情

[5-(6-Hydroxy-naphthalen-2-yl)-2,2-dimethyl-1,3-dioxinan-5-yl]-carbamic acid tert-butyl ester (Example 13, 50.0 mg, 0.000134 mol), 3-(trifluoromethyl)phenylboronic acid (50.8 mg, 0.000268 mol), cupric acetate (24.3 mg, 0.000134 mol) were placed in a vial, purged with N2, following by methylene chloride (2 mL, 0.03 mol) and triethylamine to (0.0933 mL, 0.000669 mol) at 23° C. The reaction was allowed to stir for about for 10 hours, and filtrated. The crude material was then purified via chromatography (SiO2, 4 g, 0-35%) to give a pure product (43 mg, 62%). 1H NMR (CHLOROFORM-d) δ: 7.84 (d, J=8.8 Hz, 1H), 7.79 (s, 1H), 7.73 (d, J=8.5 Hz, 1H), 7.55 (dd, J=8.7, 1.6 Hz, 1H), 7.41-7.49 (m, 1H), 7.31-7.40 (m, 2H), 7.16-7.30 (m, 314), 5.57 (br. s., 1H), 4.22-4.29 (m, 2H), 4.14 (d, J=11.3 Hz, 2H), 1.49-1.58 (m, 6H), 1.36 (br. s., 9H). MS (M−113): 404.20.

1. custompurged with N2
2. filtrationfiltrated
3. customThe crude material was then purified via chromatography (SiO2, 4 g, 0-35%)