1: With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; hexane T=-78 - 5°C; 2.41667 h; 2: With tri-isopropoxy-borane in tetrahydrofuran; hexane T=-78°C; 0.166667 h;

1: pyridin-4-yl-carbamic acid tert-butyl ester With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; hexane T=-78 - -4°C; 2.5 h; Inert atmosphere; 2: boric acid trimethyl ester in tetrahydrofuran; hexane T=-78 - 0°C; 0.25 h; 3: With water; ammonium chloride in tetrahydrofuran; hexane 0.0333333 h;