1: tetrabutylammomium bromide; dihydrogen peroxide; sodium hydroxide / dichloromethane; water / 0 °C 2: (Ph3P)AuCl; silver trifluoromethanesulfonate / dichloromethane / 0.08 h / 20 °C View Scheme

1: tetrabutylammomium bromide; dihydrogen peroxide; sodium hydroxide / dichloromethane; water / 0 °C 2: silver trifluoromethanesulfonate; methanol; {1,3-bis[2,6-di(propan-2-yl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene}AuCl; toluene-4-sulfonic acid / dichloromethane-d2 / 0.17 h / 20 °C View Scheme

1: tetrabutylammomium bromide; dihydrogen peroxide; sodium hydroxide / dichloromethane; water / 0 °C 2: silver trifluoromethanesulfonate; {1,3-bis[2,6-di(propan-2-yl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene}AuCl / chloroform / 0.08 h / 20 °C 3: hydrogenchloride / chloroform; water / 0.17 h / 20 °C View Scheme

1: tetrabutylammomium bromide; dihydrogen peroxide; sodium hydroxide / dichloromethane; water / 0 °C 2: silver trifluoromethanesulfonate; methanol; {1,3-bis[2,6-di(propan-2-yl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene}AuCl; toluene-4-sulfonic acid / dichloromethane-d2 / 0.17 h / 20 °C View Scheme

potassium phosphate; iodine in dichloromethane T=20°C; 0.5 h;