1: dibenzyl hydrogen phosphate With tetra(n-butyl)ammonium hydrogensulfate; sodium hydrogencarbonate in dichloromethane; water T=0°C; 0.166667 h; 2: chloromethyl chlorosulphate in dichloromethane; water T=20°C;

tetra(n-butyl)ammonium hydrogensulfate; sodium hydrogencarbonate in dichloromethane; water T=0 - 20°C;

1: dibenzyl hydrogen phosphate With tetra(n-butyl)ammonium hydrogensulfate; sodium hydrogencarbonate in dichloromethane; water T=0°C; 0.166667 h; 2: monochloromethanesulfonyl chloride in dichloromethane; water T=0 - 20°C;