trifluorormethanesulfonic acid in acetonitrile T=-20°C;

1: 1-benzenesulfinyl piperidine With 4 A molecular sieve; trifluoromethanesulfonic acid anhydride; N-ethyl-N,N-diisopropylamine in dichloromethane T=-60°C; 0.0833333 h; 2: 2-allyl-phenol in dichloromethane T=-60 - 20°C; 2.25 h;

tetrabutylammomium bromide in dichloromethane Ambient temperatureelectrolyzed 0.02-0.03 A, 3 mA/cm2;

1: Cl2 / CCl4 / 0 °C 2: 3) NaHCO3 / 1) CH3CN, 0 deg C then RT, 1 h, 2) CH3CN, H2O, 80 deg C, 80 min, 3) CH3CN, H2O, 80 deg C, 9.5 h View Scheme

in dichloromethane 1.) -60 - -40 deg C, 2 h; 2.) RT, 3 h;

sodium hydrogencarbonate 1) CH3CN, 0 deg C then RT, 1 h, 2) CH3CN, H2O, 80 deg C, 80 min, 3) CH3CN, H2O, 80 deg C, 9.5 h; Yield given. Multistep reaction. Yields of byproduct given;