1: di-tert-butyl phosphite With potassium permanganate; potassium hydrogencarbonate in water T=0 - 20°C; 2: chloromethyl chlorosulphate With tetra(n-butyl)ammonium hydrogensulfate; potassium hydrogencarbonate in dichloromethane; water T=5 - 20°C; 71 h;
1: di-tert-butylphosphate potassium salt With tetra(n-butyl)ammonium hydrogensulfate; sodium carbonate in dichloromethane; water T=11.1 - 16.2°C; 2: monochloromethanesulfonyl chloride in dichloromethane; water T=15 - 23°C;
