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Atmospheric Hydrogenation of Esters Catalyzed by PNP-Ruthenium Complexes with an N-Heterocyclic Carbene Ligand

Osamu Ogata*, Yuji Nakayama, Hideki Nara, Mitsuhiko Fujiwhara and Yoshihito Kayaki*

*Takasago International Corporation, 1-4-11 Nishi-Yawata, Hiratsuka, Kanagawa 254-0073; Tokyo Institute of Technology, Tokyo 152-8552, Japan, Email:,

O. Ogata, Y. Nakayama, H. Nara, M. Fujiwhara, Y. Kayaki, J. Zhu, Org. Lett., 2016, 18, 3894-3897.

DOI: 10.1021/acs.orglett.6b01900 (free Supporting Information)


Pincer ruthenium complexes bearing a monodentate N-heterocyclic carbene ligand have been used as powerful hydrogenation catalysts. With an atmospheric pressure of hydrogen gas, aromatic, heteroaromatic, and aliphatic esters as well as lactones were converted into the corresponding alcohols.

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Key Words

reduction of esters, hydrogen

ID: J54-Y2016