1: With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; hexanes T=-78 - -6°C; 2.5 h; 2: With tri-isopropoxy-borane in tetrahydrofuran; hexanes T=-78°C; 0.166667 h; 3: With ammonium chloride in tetrahydrofuran; hexanes; water T=0°C;

1: pyridin-2-yl-carbamic acid tert-butyl ester With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; n-heptane T=-70 - -6°C; 3.16667 h; 2: triisobutyl borate in tetrahydrofuran; n-heptane T=-70 - 0°C; 1 h; 3: With water; ammonium chloride in tetrahydrofuran; n-heptane T=0°C;