反应详情

Reaction of 151a (0.295 g, 1.04 mmol) and Lawesson's reagent (0.252 g, 0.624 mmol) in toluene (15 mL) within 12 h as described for the synthesis of 147a gave compound 153a (0.291 g, 94%) as yellow solid. 1H NMR (CDCl3, 400 MHz) δ 3.90 (3H, s), 6.04 (2H, s), 6.62-6.68 (2H, m), 7.38-7.42 (1H, m), 7.48 (2H, t, J=7.2), 7.68 (2H, d, J=8.0), 7.82 (1H, d, J=4.8), 8.53 (1H, s); 13C NMR (CDCl3, 100 MHz) δ 50.9, 56.4, 110.0, 112.0, 120.2, 122.4, 128.5, 129.3, 132.2, 136.4, 141.9, 158.7, 171.5 HRMS (EI) calcd for C15H14N4O2 [M]+ 282.1117. found 282.1115. HRMS (EI) calcd for C15H14N4OS [M]+ 298.0888. found 298.0888.