3-Chlorophenol → 2-tert-Butyl-4-{[3-(3-chlorophenoxy)propyl]amino}-5-phenylisothiazol-3(2H)-one 1,1-dioxide

Participants

Reaction Steps

The title compound was prepared as described for Example 12 from 3-chlorophenol and 3-[(2-tert-butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]propyl 4-methylbenzenesulfonate with a reaction time of 15 mins. The reaction mixture was evaporated and purified by silica gel column chromatography (Horizons Biotage) using 15% EtOAc in petroleum ether 40-60° C. as eluent to give the title compound (0.079 g, 72%). 1H NMR (500 MHz CDCl3): δ 7.54-7.50 (m, 2H), 7.46-7.40 (m, 3H), 7.20 (t, 1H), 6.95 (d, 1H), 6.84 (s, 1H), 6.75 (dd, 1H), 5.67 (t, 1H), 3.86 (t, 1H), 3.11-3.04 (m, 2H), 1.86-1.80 (m, 2H), 1.75 (s, 9H), 13C NMR (125 MHz CDCl3): δ 159.8, 159.3, 135.3, 135.1, 131.8, 130.5, 129.8, 128.8, 125.3, 121.5, 115.0, 113.2, 107.4, 66.2, 61.7, 42.4, 28.9, 27.8: Mass Spectrum M+H+ 449.

Provenance & Evidence