dibutoxyphosphorylbenzene

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-(trimethylsilyl)phenyl trifluoromethanesulfonate (25 mg, 0.083 mmol), Cesium Fluoride (70 mg, 0.461 mmol), Tributyl phosphite (83 mg, 0.335 mmol), Acetonitrile (1 ml): Reaction Time: 24 h; Rf: 0.4 (1:3 EtOAc:Pet. Ether); Thick oil; 16.3 mg, 72%; 1H NMR (400 MHz, CDCl3, TMS) δ 7.80 (dd, J=6.8, 13.3 Hz, 2H), 7.55 (t, J=7.5 Hz, 1H), 7.50-7.42 (m, 2H), 4.12-3.95 (m, 4H), 1.65 (quint, J=7.3 Hz, 4H), 1.39 (sext, J=7.3 Hz, 4H), 0.9 (t, J=7.3 Hz, 6H); 13C NMR (100 MHz, CDCl3, TMS) δ 132.3 (d, J=3.1 Hz), 131.7 (d, J=9.3 Hz), 128.4 (d, J=15.4 Hz), 128.3 (d, J=187.3 Hz), 65.8 (d, J=5.4 Hz), 32.4 (d, J=6.9 Hz), 18.7, 13.6; 31P NMR (162 MHz, CDCl3) δ 18.8; Mass (M+Na)+ 293; Known compound, Lit. X. Lu, J. Zhu, Synthesis 1987, 8, 726. 24 h Zhu, Synthesis 1987, 8, 726