Removal of zinc salts from nonaqueous synthesis solutions...

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

Reexamination Certificate

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C556S118000

Reexamination Certificate

active

06921487

ABSTRACT:
A process for removing zinc from organic solutions comprising zinc alkoxides or zinc amides, includes admixing the solution with an alkylating, arylating, acylating or silylating agent in the presence of a precipitating reagent having at least two nitrogen donors and subsequently removing the precipitated solid.

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K. Soai, T. Shibata, Comprehensive Asym-metric Catalysis, vol. II, Berlin,1999, pp. 911-922.
Heathcocle et al., Organometallics, 1987, 6, p. 2069.

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