Alcohol-free orthoesters of zirconium and hafnium and method for

Details Alcohol-free orthoesters of zirconium and hafnium and method for Alcohol-free orthoesters of zirconium and hafnium and method for

1988-07-12

1990-01-02

Doll, John

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

Organic compounds

Heavy metal containing

C07F 700

Patent

active

048914398

ABSTRACT:
Disclosed are very pure zirconium and hafnium orthoesters and a method for their preparation. In this method the reaction between the halides of these metals and the alcohols is performed in the presence of hydrocarbons or chlorinated hydrocarbons, and the alcohol is not use in excess. The obtained orthoesters are in very pure form and not as addition products with alcohol. They can be isolated as solids.

REFERENCES:
patent: 3721689 (1973-03-01), Bardinet
patent: 3752834 (1973-08-01), Bardinet et al.
patent: 3754011 (1973-08-01), Hoch
Journal of the Chemical Society, pp. 2025-2030 (1953) by J. Bradley.

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