1: methanephosphonic acid dimethyl ester With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.5 h; 2: 2-Methyl-2-phenylpropionate, methyl ester in tetrahydrofuran; hexane T=-78°C; 2.16667 h;

n-butyllithium in tetrahydrofuran; hexane; water; ethyl acetate