Method for preparing conjugated diene phosphonate compounds
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United States of America Patent
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Nov 25, 2014
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Oct 30, 2009
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Oct 30, 2009
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Abstract
It is provided a method for preparing conjugated diene phosphonate compounds with high reactivity, which can be used to prepare a variety of phosphonate-bearing conjugated dienes. Some of those dienes will become reactive monomers to make polymers and co-polymers. The said method comprises the step of reacting α, β- or β, γ-unsaturated ketones or aldehydes with phosphorus acid or its derivates optionally in a mixture of acetic anhydride and/or acetic acid, to obtain a conjugated diene phosphonate compound having the formula (III)
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