Method for the production of dibenz[c,e] [1,2]-oxaphosphorin derivatives, amino-dibenz[c,e] [1,2]-oxaphosphorin and also use thereof
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United States of America Patent
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Jul 5, 2011
Grant Date -
Mar 18, 2010
app pub date -
Aug 12, 2009
filing date -
Aug 14, 2008
priority date (Note) -
Expired
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Abstract
The invention relates to general syntheses of (6H)-dibenz[c,e] [1,2]-oxaphosphorins which are substituted with nitrogen compounds on the phosphorus atom and comprising commercially available 6H-dibenz[c,e] [1,2]-oxaphosphorin-6-oxides. These nitrogen-containing (6H)-dibenz[c,e] [1,2]-oxaphosphorins can be used as reactive starting substances for further syntheses or as flameproofing agents or as stabilisers.
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