| 摘要 |
A method of synthesizing a substantially pure homoleptic tetrakis secondary amine derivative of silicon, said derivative being substantially free of halogen and having the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>Si(NRR<SUP>1</SUP>)<SUB>4 </SUB><?in-line-formulae description="In-line Formulae" end="tail"?> wherein: R and R<SUP>1 </SUP>are the same or different and are substituted or unsubstituted straight or branched chain alkyl, groups having from 1 to 6 carbon atoms, said method comprising reacting a silicon halide having the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>SiX<SUB>4 </SUB><?in-line-formulae description="In-line Formulae" end="tail"?> wherein: X is bromine or iodine, with an excess of a secondary amine having the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>HNRR<SUP>1 </SUP><?in-line-formulae description="In-line Formulae" end="tail"?> wherein: R and R<SUP>1 </SUP>are as defined as above, for a time and under conditions sufficient to produce a reaction product mixture containing the desired product, Si(NRR<SUP>1</SUP>)<SUB>4</SUB>.
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