Enantioselective CuH-Catalyzed Reductive Coupling of Aryl Alkenes and Activated Carboxylic Acids
作者:Jeffrey S. Bandar、Erhad Ascic、Stephen L. Buchwald
DOI:10.1021/jacs.6b03086
日期:2016.5.11
A new method for the enantioselective reductive coupling of aryl alkenes with activated carboxylic acid derivatives via copper hydride catalysis is described. Dual catalytic cycles are proposed, with a relatively fast enantioselective hydroacylation cycle followed by a slower diastereoselective ketone reduction cycle. Symmetrical aryl carboxyclic anhydrides provide access to enantioenriched α-substituted
Nickel‐Copper‐Catalyzed Hydroacylation of Vinylarenes with Acyl Fluorides and Hydrosilanes
作者:Yusuke Ueda、Tomohiro Iwai、Masaya Sawamura
DOI:10.1002/chem.201900822
日期:2019.7.17
The hydroacylation of vinylarenes with acylfluorides and hydrosilanes was enabled by a synergistic bimetallic Ni/Cu‐catalytic system, giving access to the corresponding branched ketone products. The reaction takes place under mild conditions at 25–80 °C and tolerates base‐sensitive functional groups such as methoxycarbonyl and acetoxy groups.
Exogenous Ligand-Free NiH-Catalyzed Hydroacylation of Aryl Alkenes with Aroyl Fluorides
作者:Jihye Kim、Jieun Jang、Yoonho Lee、Kwangmin Shin
DOI:10.1021/acs.orglett.2c02110
日期:2022.7.29
Acylfluorides have emerged as efficient acyl group donors, but these attractive reagents have rarely been utilized in transition-metal-catalyzed hydroacylation. Herein we report a nickel hydride-catalyzed hydroacylation of aryl alkenes using aroyl fluorides. The reaction proceeds without recourse to an exogenous ligand under mild conditions. The synthetic utility of the present method is demonstrated