Method for preparing organo germanium propionic acid derivatives
 Germanium tetrachloride is reduced with hypophosphorous acid or its salt in hydrochloric acid, or lower alcohol, or lower alcoholic hydrochloric acid solution. The reaction mixture is then reacted with acrylic acid derivatives and further hydrolyzed to the desired organo germanuim propionic acid derivatives. 
Industrial Technology Research Institute
C C
C07F C01G
inventional inventional
Hsueh-Ling Ching-Te Lian-Tze
Su Chang Lee