Enantioselective Ruthenium-Catalyzed Carbonyl Allylation via Alkyne–Alcohol C–C Bond-Forming Transfer Hydrogenation: Allene Hydrometalation vs Oxidative Coupling
摘要:
Chiral ruthenium(II) complexes modified by josiphos ligands catalyze the reaction of alkyhes With primary alcohols to form homoallylic alcohols with excellent control of regio-, diastereo-, and enantio-selectivity. These processes represent the first examples of enantioselective carbonyl allylation using alkynes as allylmetal equivalents.
Catalytic Allylation of Aldehydes Using Unactivated Alkenes
作者:Shun Tanabe、Harunobu Mitsunuma、Motomu Kanai
DOI:10.1021/jacs.0c04735
日期:2020.7.15
and a chromium complex catalyst, enabling catalytic allylation of aldehydes with simplealkenes, including feedstock lower alkenes. The reaction proceeded under visible-light irradiation at room temperature and with high functional group tolerance. The reaction was extended to an asymmetric variant by employing a chiral chromium complex catalyst.
Enantioselective Ruthenium-Catalyzed Carbonyl Allylation via Alkyne–Alcohol C–C Bond-Forming Transfer Hydrogenation: Allene Hydrometalation vs Oxidative Coupling
作者:Tao Liang、Khoa D. Nguyen、Wandi Zhang、Michael J. Krische
DOI:10.1021/jacs.5b00747
日期:2015.3.11
Chiral ruthenium(II) complexes modified by josiphos ligands catalyze the reaction of alkyhes With primary alcohols to form homoallylic alcohols with excellent control of regio-, diastereo-, and enantio-selectivity. These processes represent the first examples of enantioselective carbonyl allylation using alkynes as allylmetal equivalents.
Regio- and Stereoselective Synthesis of Homoallylic Alcohols Based on the Use of (3-Chloroprop-1-en-1-yl)boronates