Method for separating a diphosphine diastereoisomers
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United States of America Patent
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Oct 14, 2003
Grant Date -
N/A
app pub date -
Jan 12, 2001
filing date -
Mar 16, 1998
priority date (Note) -
Expired
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Abstract
A process for separating the (d/l) and (meso) diastereoisomers of bis-[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] comprising converting the mixture of diastereoisomers of bis-[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] to a mixture of the corresponding diastereoisomers of diphosphine disulphide or dioxide, then in separating the two diastereoisomers in dioxide or disulphide form.
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