Asymmetric Ir-catalyzed hydrogenation of 1,3-dihydro-2H-1,5-benzodiazepin-2-ones using phosphoramidites


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Abstract

A series of phosphoramidite ligands was tested in the asymmetric hydrogenation of 4-arylsubstituted 1,3-dihydro-2H-benzodiazepine-2-ones and up to 52% ee was achieved. The effects of various factors (solvents, hydrogen pressure, and addition of phosphine ligands) on the hydrogenation were studied.

About the authors

M. V. Sokolovskaya

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: lssp452@mail.ru
Russian Federation, 28 ul. Vavilova, Moscow, 119991

S. E. Lyubimov

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Author for correspondence.
Email: lssp452@mail.ru
Russian Federation, 28 ul. Vavilova, Moscow, 119991

I. S. Mikhel

A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: lssp452@mail.ru
Russian Federation, 31/4 Leninsky prosp., Moscow, 119071

K. P. Birin

A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: lssp452@mail.ru
Russian Federation, 31/4 Leninsky prosp., Moscow, 119071

V. A. Davankov

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: lssp452@mail.ru
Russian Federation, 28 ul. Vavilova, Moscow, 119991

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