反应详情

The general procedure described in Example 27 was used with 3-chloro-2,4-difluoro-benzoic acid (97 mg, 0.50 mmol), 1-decyne (0.136 mL, 0.75 mmol), PdCl2(CH3CN)2 (3.2 mg, 0.0125 mmol, 1.25 mol %), sodium 2′-(dicyclohexyl-phosphanyl)-2,6-diisopropyl-biphenyl-4-sulfonate (20.0 mg, 0.0375 mmol, 3.75 mol %), Cs2CO3 (650 mg, 2.00 mmol), water (1.0 mL), acetonitrile (1.0 mL), 12 h, 100° C. The product was isolated as a white solid (102 mg, 70%). Mp=117° C. 1H NMR (400 MHz, d6-DMSO) δ: 10.1 (br-s, 1H), 7.88 (q, 1H, J=8.8 Hz), 7.26 (t, 1H, J=8.4 Hz), 2.51 (t, 2H, J=6.8 Hz), 1.57 (p, 2H, J=6.8 Hz), 0.80-1.43 (m, 13H). 13C NMR (125 MHz, CDCl3) δ: 168.7, 167.9, 165.3, 162.6, 132.3, 132.2, 114.1, 111.7, 111.5, 104.8, 103.1, 66.7, 32.0, 29.4, 29.3, 28.9, 28.5, 22.9, 20.0, 14.3. IR (neat, cm−1): 3428 (br), 2922, 2848, 2235, 1689, 1611, 1406, 1268, 1242, 1051, 1036. Anal. Calcd for C17H20F2O2: C, 69.37; H, 6.85. Found: C, 69.13; H, 6.80.