FC(F)(F)S(O[C:7]1[CH:16]=[CH:15][C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[C:8]=1[Si](C)(C)C)(=O)=O.[F-].[Cs+].C([O:27][P:28]([C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)C.C(#N)C>CCOC(C)=O>[CH:8]1[C:9]2[C:14](=[CH:13][CH:12]=[CH:11][CH:10]=2)[CH:15]=[CH:16][C:7]=1[P:28](=[O:27])([C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1)[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=11-(trimethylsilyl)naphthalen-2-yl trifluoromethanesulfonate (25 mg, 0.071 mmol), Cesium Fluoride (60 mg, 0.395 mmol), Ethoxydiphenylphosphane (68 mg, 0.287 mmol), Acetonitrile (1 ml): Reaction Time: 16 h; Rf: 0.4 (1:3 EtOAc:Pet Ether); Thick oil; 19.5 mg, 83%; 1H NMR (400 MHz, CDCl3, TMS) δ 8.28 (d, J=13.8 Hz, 1H), 7.95-7.84 (m, 3H), 7.79-7.40 (m, 13H); 13C NMR (100 MHz, CDCl3, TMS) δ 134.7 (d, J=2.3 Hz), 134.0 (d, J=9.3 Hz), 133.0, 132.3, 132.1 (d, J=10.0 Hz), 132.0 (d, J=1.5 Hz), 131.3 (d, J=243.5 Hz), 128.9, 128.5 (d, J=12.3 Hz), 128.4, 128.2, 127.4 (d, J=87.9 Hz), 126.8 (d, J=10.8 Hz); 31P NMR (162 MHz, CDCl3) δ 29.3; HRMS-ESI (m/z) calcd (C22H17OP+H)+: 329.1090. found: 329.1086; Known compound, Lit. Y. -L. Zhao, G. -J. Wu, Y. Li, L. -X. Gao, F.-S. Han, Chem. Eur. J. 2012, 18, 9622.
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