“…1‐Hexyl‐1‐((1‐hexylnaphthalen‐2‐yl)oxy)naphthalen‐2(1 H )‐one ( 3c ) was prepared (purified by column chromatography, eluent: V (PE)/ V (Acetone) = 30/1) as a yellow oil (86.3 mg, 95% yield). 1 H NMR (400 MHz, CDCl 3 ) δ : 7.97 (d, J = 8.4 Hz, 1H), 7.58 (d, J = 8.0 Hz, 1H), 7.50 (d, J = 10.0 Hz, 1H), 7.43—7.38 (m, 3H), 7.30—7.21 (m, 4H), 6.30 (d, J = 9.6 Hz, 1H), 5.99 (d, J = 9.2 Hz, 1H), 3.36—3.20 (m, 2H), 2.16—2.00 (m, 2H), 1.93—1.72 (m, 2H), 1.64—1.57 (m, 2H), 1.53—1.34 (m, 6H), 1.30—1.20 (m, 6H), 0.94 (t, J = 7.2 Hz, 3H), 0.85 (t, J = 6.8 Hz, 3H).…”