“…13 1-Bromo-1-ethylnaphthalen-2(1H)-one (3b, CAS: 861354-04-3). 28 Yellow solid (48.6 mg, 97%); spectral data of 3b: 1 H NMR (400 MHz, chloroform-d ) δ 7.74 (d, J = 8.0 Hz, 1H), 7.47 (td, J = 7.6, 1.6 Hz, 1H), 7.43-7.35 (m, 2H), 7.33 (dd, J = 7.6, 1.6 Hz, 1H), 6.32 (d, J = 10.0 Hz, 1H), 3.04-2.95 (m, 1H), 2.71-2.62 (m, 1H), 0.63 (t, J = 7.6 Hz, 3H). 13 1-Benzyl-1-bromonaphthalen-2(1H)-one (3d).…”