in ethylene glycol dimethyl ether; hexane Li-compound in hexane was fluidized with a little THF and dropwise added to a soln. of B-compound in DME with a little CH2Cl2 at -78°C, kept at 20°C for 1-2 h; distd.; elem. anal.;

in tetrahydrofuran; ethylene glycol dimethyl ether; hexane byproducts: LiCl; to a soln. of LiCHCl2 (THF, hexane, prepared from LDA) at -78°Cboronic ester in DME was added in one portion, the soln. was allowed towarm to 20-25°C in 1 h and stirred at 30-35°C for 30 min,Ar atm.; filtration, evapn. in vac., distn.; elem. anal.;

n-butyllithium in hexane; dichloromethane byproducts: LiCl; addn. of n-BuLi to hexane soln. of borate (-40 degree.C), addn. of CH2Cl2 and catalysts, room temperature (18 h);

(tricyclohexylphosphine)(1,5-cyclooctadiene)pyridineiridium(I) hexafluorophosphate; hydrogen in toluene T=80°C; P=7500.75 Torr; 12 h; chemoselective reaction;

1.1: n-butyllithium / tetrahydrofuran; hexane / -78 °C 1.2: 2 h / -78 °C / Inert atmosphere 1.3: -78 - 20 °C / Inert atmosphere 2.1: Schwartz's reagent / dichloromethane / 1 h / 20 °C / Inert atmosphere 2.2: Inert atmosphere 3.1: (tricyclohexylphosphine)(1,5-cyclooctadiene)pyridineiridium(I) hexafluorophosphate; hydrogen / toluene / 12 h / 80 °C / 7500.75 Torr View Scheme

1.1: n-butyllithium / tetrahydrofuran; hexane / -78 °C 1.2: 2 h / -78 °C / Inert atmosphere 1.3: -78 - 20 °C / Inert atmosphere 2.1: Schwartz's reagent / dichloromethane / 1 h / 20 °C / Inert atmosphere 2.2: Inert atmosphere 3.1: (tricyclohexylphosphine)(1,5-cyclooctadiene)pyridineiridium(I) hexafluorophosphate; hydrogen / toluene / 12 h / 80 °C / 7500.75 Torr View Scheme

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