Ruthenium-phosphine complex
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United States of America Patent
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Apr 19, 1988
Grant Date -
N/A
app pub date -
Jun 15, 1987
filing date -
Aug 6, 1986
priority date (Note) -
Expired
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Abstract
A ruthenium-phosphine complex represented by formula (I): [RuH.sub.l (R-BINAP).sub.m ]X.sub.n' (I) wherein R-BINAP is a tertiary phosphine represented by formula (II): ##STR1## R is a hydrogen atom or a methyl group; X is a ClO.sub.4, BF.sub.4, or PF.sub.6 ; and when l is 0, then m is 1 and n' is 2, and when l is 1, then m is 2 and n' is 1, is disclosed. The complex is inexpensive and exhibits excellent performances as a catalyst for various organic syntheses, and particularly for asymmetric hydrogenation.
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