TY - JOUR
T1 - Activation and deactivation of Cp*Ir(TsDPEN) hydrogenation catalysts in water
AU - Letko, Christopher S.
AU - Heiden, Zachariah M.
AU - Rauchfuss, Thomas B.
PY - 2009
Y1 - 2009
N2 - The addition of H3PO4 to Cp*Ir(TsDPEN-H), where TsDPEN = H2NCHPhCHPhNTs, is a simple method to obtain a water-soluble hydrogenation catalyst capable of reducing aromatic ketones to their corresponding alcohols in aqueous solutions. Key to the reactivity is the low affinity of the coordinatively unsaturated [Cp*Ir(TsDPEN)]+ for H2PO4. Catalyst degradation proceeds via the protonation of the tosylamido ligand, as was established by the crystallographic characterization of the tosylamine complex [Cp*Ir(NCMe)(HTsDPEN)] 2+.
AB - The addition of H3PO4 to Cp*Ir(TsDPEN-H), where TsDPEN = H2NCHPhCHPhNTs, is a simple method to obtain a water-soluble hydrogenation catalyst capable of reducing aromatic ketones to their corresponding alcohols in aqueous solutions. Key to the reactivity is the low affinity of the coordinatively unsaturated [Cp*Ir(TsDPEN)]+ for H2PO4. Catalyst degradation proceeds via the protonation of the tosylamido ligand, as was established by the crystallographic characterization of the tosylamine complex [Cp*Ir(NCMe)(HTsDPEN)] 2+.
KW - Aqueous catalysis
KW - Catalyst degradation
KW - Homogeneous catalysis
KW - Hydrides
KW - Hydrogenation
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U2 - 10.1002/ejic.200900780
DO - 10.1002/ejic.200900780
M3 - Article
AN - SCOPUS:72949085094
SN - 1434-1948
SP - 4927
EP - 4930
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 33
ER -