in tetrahydrofuran byproducts: CO; Irradiation (UV/VIS); irradn. a 400-W high pressure mercury lamp with stirring under argon for 30 min; removal of solvent with a rotary evaporator, purifn. by flash column chromatography, NMR, elem. anal.;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209227', constants.ctx, '0')">n-butyllithium</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />&nbsp;byproducts: LiOCH3; addition butyllithium at 0 to -5&deg;C, stirring at room temp., quenching with satd. aq. ammonium chloride soln.; extn. with diethyl ether and drying over MgSO4, evapn. of solvent, purifn. by flash column chromy.; elem. anal; IR, NMR;&nbsp;<br /> &nbsp;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />&nbsp;byproducts: LiOCH3, Ge(C6H5)3H; dropwise addn. of organic compd. (via syringe) to a soln. of Li-compd. (prepd. from GePh3 and BuLi in hexane) at room temp. under Ar, stirred for 10 min; quenched with aq. NH4Cl, organic layer extd. (ether), dried over MgSO4, evapd., flash chromy.;&nbsp;<br /> &nbsp;