“…White solid; 193.8 mg, 88% isolated yield; 1 H NMR (400 MHz, CDCl 3 ) δ 7.62 (dd, J = 1.8, 0.7 Hz, 1H), 7.52 (d, J = 2.3 Hz, 1H), 3H),6.42 (s,2H),2H),6.10 (d,J = 6.6 Hz,1H),18H). 13 C NMR (101 MHz, CDCl 3 ) δ 153. 6, 153.5, 139.9, 138.5, 137.86, 135.2, 134.0, 131.8, 128.81, 128.80, 126.7, 105.8, 104.5, 104.0, 67.8, 61.08, 61.06, 60.96, 60.94, 56.29, 56.28, 56.26.…”