Catalytic Asymmetric Hydrogenation of Pyrimidines
Abstract
<jats:title>Abstract</jats:title><jats:p>The asymmetric hydrogenation of pyrimidines proceeded with high enantioselectivity (up to 99 % <jats:italic>ee</jats:italic>) using an iridium catalyst composed of [IrCl(cod)]<jats:sub>2</jats:sub>, a ferrocene‐containing chiral diphosphine ligand (Josiphos), iodine, and Yb(OTf)<jats:sub>3</jats:sub> (cod=1,5‐cyclooctadiene). The chiral catalyst converted various 4‐substituted pyrimidines into chiral 1,4,5,6‐tetrahydropyrimidines in high yield. The lanthanide triflate is crucial for achieving the high enantioselectivity as well as for activating the heteroarene substrate.</jats:p>
Journal
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- Angewandte Chemie International Edition
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Angewandte Chemie International Edition 54 (8), 2393-2396, 2015-01-07
Wiley
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Details 詳細情報について
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- CRID
- 1360004229921501568
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- ISSN
- 15213773
- 14337851
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- Data Source
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- Crossref
- KAKEN