Asymmetric Ir-catalyzed hydrogenation of 4-R-1,3-dihydro-2H-1,5-benzodiazepin-2-ones using a novel phosphoramidite ligand
Journal Article
·
· Russian Chemical Bulletin
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds (Russian Federation)
- Russian Academy of Sciences, A. N. Frumkin Institute of Physical Chemistry and Electrochemistry (Russian Federation)
A novel chiral phosphoramidite ligand, (S{sub a})-2-[N-ethyl-N-(1-naphthylmethyl)amino]-dinaphtho[2,1-d:1´,2´-f][1,3,2]dioxaphosphepane, was obtained and tested in Ir-catalyzed asymmetric hydrogenation of a series of 4-R-1,3-dihydro-2H-1,5-benzodiazepin-2-ones, wherein up to 74% ee was achieved. The structure of the resulting compounds was determined based on one- and two-dimensional NMR ({sup 1}H, {sup 13}C, {sup 31}P, {sup 1}H—{sup 1}H COSY, {sup 1}H—{sup 1}H ROESY, {sup 1}H—{sup 13}C HSQC and {sup 1}H—{sup 13}C HMBC) spectroscopy data.
- OSTI ID:
- 22943129
- Journal Information:
- Russian Chemical Bulletin, Vol. 68, Issue 7; Other Information: Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2019 Springer Science+Business Media, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1066-5285
- Country of Publication:
- United States
- Language:
- English
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