Process for preparing trimethylsilyloxy functionalized alkyllith

Details Process for preparing trimethylsilyloxy functionalized alkyllith Process for preparing trimethylsilyloxy functionalized alkyllith

1997-05-05

1999-06-15

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556482, 556486, C07F 708, C07F 718

Patent

active

059123788

ABSTRACT:
A process for producing compounds of the formula (CH.sub.3).sub.3 SiORLi, wherein R is selected from alkyl groups containing 2 to 10 carbon atoms and aryl groups containing 6 to 10 carbon atoms, by reacting, optionally in the presence of a catalyst, in an inert atmosphere, a haloalcohol of the formula HORX, wherein R is selected from alkyl groups containing 2 to 10 carbon atoms and aryl groups containing 6 to 10 carbon atoms and X is selected from chlorine or bromine, is reacted with neat hexamethyldisilazane at a temperature between 20.degree. C. and 200.degree. C., optionally in the presence of a catalyst, after which the resulting product, a trimethylsilyloxyalkylhalide compound, is reacted at a temperature between 50.degree. C. and 160.degree. C., with powdered lithium metal, in an inert hydrocarbon medium, to produce the (CH.sub.3).sub.3 SiORLi compound.

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