1: trimethylsilylacetylene With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.666667 h; Inert atmosphere; 2: Caprylic Aldehyde in tetrahydrofuran; hexane T=-78°C; 1 h; Inert atmosphere;

in methanol; pentane

methanol; ethanolamine multistep reaction: addition of B-<2-(trimethylsilyl)ethynyl>-9-borabicylco<3.3.1>nonane, formation of the aldehyde and the 9-borobicyclo<3.3.1>nonane-ethanonamine adduct; other aldehydes and ketones, other time;