“…6d was isolated as orange needles from a cooled solution of EtOH in 79% yield 1. H NMR d ppm: 1.8 (br m, 2H, CH 2 ), 1.1-1.2 (br m, 2H, CH 2 ), 1.17 (m, 3H, PCH 2 CH 3 ), 1.71 (s, 15H, CpCH 3 ), 1.7-2.1 (br m, 4H, CH 2 ), 2.01 (m, 2H, PCH 2 CH 3 ), 3.89 (s, 3H, PhOCH 3 ), 6.09 (d m, 1H, PH, 1 J P-H = 351 Hz),6.24 (d m, 1H, PH, 1 J P-H = 363 Hz), 6.86 (br m, 1H, Ph), 7.24 (br m, 1H, Ph), 7.46 (br m, 1H, Ph) 13. C NMR d ppm: 9.3 (PCH 2 CH 3 ), 11.2 (CpCH 3 ), 20.5 (m, PCH 2 CH 3 ), 23.2 (m, CH 2 ), 25.1 (m, CH 2 ), 25.9 (m, CH 2 ), 56.4 (PhOCH 3 ), 89.2 (Cp), 112.7 (Ph), 122.8 (Ph), 135.3 (Ph), 144.7 (Ph), 151.5 (Ph), 158.6 (Ph).…”