“…Compound 3l was prepared in 58% yield following the general procedure as a yellow oil. 1 H NMR (400 MHz, Chloroform-d) δ: 7.07-6.88 (m, 4H), 6.72 (d, J = 7.6 Hz, 1H), 6.59 (m, 1H), 6.24 (d,J = 7.7 Hz,1H) 144.53,132.31,128.40 (q,J = 29.6 Hz),127.83,126.36,125.88,124.49,123.61,123.15,118.41,117.45,116.66 (q,J = 5.8 Hz),105.56,79.31,52.49,35.37,31.19,31.03,18.15,17.86;19 F NMR (376 MHz, 150.74,144.63,132.40,128.32 (q,J = 29.4 Hz),127.74,126.31,124.51 (q,J = 274.0 Hz),124.83,123.70,118.43,117.32,116.67 (q,J = 5.8 Hz),105.34,79.60,52.69,46.15,30.97,30.88,29.86,27.95,27.84,26.99,26.93,26.68;19 F NMR (376 MHz,…”