Process of preparing trimethylsilyloxy functionalized alkyllithi

Details Process of preparing trimethylsilyloxy functionalized alkyllithi Process of preparing trimethylsilyloxy functionalized alkyllithi

1994-07-25

1995-04-04

Shaver, Paul F.

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

Organic compounds

Silicon containing

556482, 556486, C07F 708, C07F 718

Patent

active

054039460

ABSTRACT:
A process for producing compounds of the formula (CH.sub.3).sub.3 SiORLi where in R is selected from alkyl groups containing 2 to 10 carbon atoms and aryl groups containing 6 to 10 carbon atoms by reacting, in an inert atmosphere, in a hydrocarbon solvent, 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 hexamethyldisilazane at a temperature between 20.degree. C. and the reflux temmperature of the solvent after which the resulting product, a trimethylsilyloxyalkylhalide compound, is reacted at a temperature between 50.degree. and 160.degree. C., with powdered lithium metal to produce the (CH.sub.3).sub.3 SiORLi compound.

REFERENCES:
patent: 3511865 (1970-05-01), Peterson
patent: 5082961 (1992-01-01), Fukumoto et al.
patent: 5231205 (1993-07-01), Rieke
patent: 5321148 (1994-06-01), Schwindeman

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