1: bis-trimethylsilyl ether With methanol; sulfuric acid T=5 - 10°C; 1 h; 2: methacrylic acid-3-trimethoxysilylpropyl ester T=5 - 10°C; 1.5 h; 3: With sulfuric acid; water more than 3 stages;

1: With sulfuric acid; acetic acid; trifluorormethanesulfonic acid T=-15 - 20°C; 2: With 1,1,1,3,3,3-hexamethyl-disilazane T=20°C; 2 h; Product distribution / selectivity;

in methanol; hexane; water T=20°C; 3 h; Product distribution / selectivity;