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Compound 9g was synthesized by a procedure similar to that described for 9a using commercially available 3-nitropropiophenone (8g, 5.0 g, 0.028 mol), TBDMSOTf (7.1 mL, 30.7 mmol), and Et3N (6.2 mL) in CH2Cl2 (50 mL). After purification on alumina, 8.0 g (98%) of 9g was isolated as colorless oil: 1H NMR (CDCl3) δ 8.34-8.30 (m, 1H), 8.12-8.06 (m, 1H), 7.80-7.75 (m, 1H), 7.52-7.42 (m, 1H), 5.40 (q, 1H, J=6.9 Hz), 1.78 (d, 3H, J=6.9 Hz), 1.02 (s, 9H), −0.02 (s, 6H); 13C NMR (CDCl3) δ 148.8, 141.6, 131.3, 129.0, 122.1, 120.5, 108.6, 106.8, 25.9, 18.4, 12.0, −3.8. C15H23NO3Si.

1. customCompound 9g was synthesized by a procedure similar to
2. customAfter purification on alumina