Catalyst compounds
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United States of America Patent
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Dec 15, 2015
Grant Date -
Mar 19, 2015
app pub date -
Apr 15, 2013
filing date -
Apr 13, 2012
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Abstract
The present invention relates to an iridium-based catalyst compound for hydrogenating reducible moieties, especially imines and iminiums, the catalyst compounds being defined by the formulas: where ring B is either itself polycyclic, or ring B together with R is polycyclic. The catalysts of the invention are particularly effective in reductive amination procedures 10 which involve the in situ generation of the imine or iminium under reductive hydrogenative conditions.
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