反应详情

This reaction is carried out in the same manner as the reaction in example 3. The difference is that, the reactants are p-methylphenyl chloride (127.0 mg, 1.0 mmol), palladium cinnamyl chloride (7.9 mg, 0.015 mmol), 2-Methoxy-6-(N-methyl-N-phenyl-amino) henyldicyclohexyl)phosphine (24.3 mg, 0.060 mmol), Cs2CO3 (652.2 mg, 2.0 mmol) in 4.0 mL acetone at 90° C. for 18 h. 1-(p-tolyl)-2-propanone (100.5 mg) was obtained with a yield of 68% as liquid. 1H NMR (300 MHz, CDCl3) δ 7.19-7.05 (m, 4H, ArH), 3.66 (s, 2H, CH2), 2.34 (s, 3H, ArCH3), 2.15 (s, 3H, COCH3); 13C NMR (75 MHz, CDCl3) δ 206.7, 136.6, 131.1, 129.4, 129.2, 50.6, 29.1, 21.0; IR (neat) v (cm−1) 3023, 3004, 2922, 2857, 1714, 1615, 1514, 1417, 1356, 1229, 1158, 1040, 1023; MS (70 eV, EI) m/z (%): 149 (M++1, 3.90), 148 (M+, 31.26), 105 (100).

1. customThis reaction is carried out in the same manner as the reaction in example 3
2. customat 90° C.
3. customfor 18 h