1: 84 percent / triethylamine 2: 1.) potassium trimethylsilanolate, 2.) methylchloroformate / 1.) ether, 2 h, 2.) ether, 25 deg C, 2 h 3: diethyl ether / 16 h / 25 °C View Scheme

1: 84 percent / triethylamine 2: 1.) potassium trimethylsilanolate, 2.) methylchloroformate / 1.) ether, 2 h, 2.) ether, 25 deg C, 2 h 3: diethyl ether / 16 h / 25 °C View Scheme

1: 1.) potassium trimethylsilanolate, 2.) methylchloroformate / 1.) ether, 2 h, 2.) ether, 25 deg C, 2 h 2: diethyl ether / 16 h / 25 °C View Scheme

in diethyl ether T=25°C; 16 h; Yield given;