Preparation of bis-carboxy ethyl germanium sesquioxide and its p

Details Preparation of bis-carboxy ethyl germanium sesquioxide and its p Preparation of bis-carboxy ethyl germanium sesquioxide and its p

1982-02-01

1985-04-02

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 730

Patent

active

045086540

ABSTRACT:
Reaction mixture of germanium dioxide and hypophosphorous acid or its salts in hydrochloric acid is extracted with organic solvent. This resultant is then reacted with acrylic acid or its derivatives, and further hydrolyzed to provide bis-carboxy ethyl germanium sesquioxide or its propionic acid derivatives.

REFERENCES:
patent: 3689516 (1972-09-01), Asai et al.
patent: 3793455 (1974-02-01), Asai et al.
patent: 3812167 (1974-05-01), Pahk
patent: 4066678 (1978-03-01), Sato et al.
patent: 4271084 (1981-06-01), Ishikawa et al.
Chemical Abstracts 46 7925(b) (1952).

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