manganese; chloro-trimethyl-silane; lithium iodide; CrCl3(THF)3 in tetrahydrofuran T=25°C; 20 h; Product distribution; Further Variations:Reagents;

n-butyllithium; dichloromethane in benzene byproducts: H2O; (Ar); trimethylborate reacted with CH2Cl2 and n-C4H9Li/hexane accordingto Rathke's method, solvent removed (vac.), taken up in C6H6 with pinacol hexahydrate, refluxed for 72 h; cooled to room temp., fractionally distd. (inert gas); elem. anal.;

in benzene 48 h; Heating;

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);

2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in benzene (Ar); Bu3SnH added to B compd. soln., AIBN added, stirred for 24 h at room temp.; fractional distn.; elem. anal.;

in not given by procedure of Sadhu, K. M.; Matteson, D. S.; Hurst, G. D.; Kurosky, J. M. Organometallics 1984, 3, 804-806; elem. anal.;