Process for preparing phosphorus compounds having phosphate-phosphonate bond
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United States of America Patent
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Jun 1, 2010
Grant Date -
Mar 5, 2009
app pub date -
Oct 18, 2005
filing date -
Nov 2, 2004
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Abstract
A novel process for preparing in a high purity and in a high yield phosphorus compounds having a phosphate-phosphonate bond within one molecule, along with only a small amount of a by-product, without being restricted by the kind of a phosphonate having an alcoholic hydroxyl group which is a raw material, without using a catalyst such as magnesium chloride, but only using a nitrogen-containing basic compound.
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