Method for the preparation of anhydrous tin-dicarboxylate-dihalides
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United States of America Patent
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Nov 26, 1991
Issued Date -
N/A
app pub date -
Jan 29, 1991
filing date -
Feb 17, 1990
priority date (Note) -
Expired
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Abstract
A method is disclosed for the preparation of anhydrous tin-dicarboxylate-dihalide. Anydrous tin-(II)-halide is reacted with an excess amount of acetic acid anhydride at temperatures of about between 20.degree. to 100.degree. C. while passing oxygen through the reaction mixture or adding an oxygen yielding agent such as hydrogen peroxide. The tin-diacetate-dihalide thus formed is separated and is further reacted with aliphatic carboxylic acid having more than 4 carbon atoms or the corresponding acid anhydrides at the temperatures of 80.degree. to 150.degree. C. while the liberated acetic acid anhydride or acetic acid is removed by distillation.
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