Enantioselective Hydrocarbamoylation of Alkenes.

Angew Chem Int Ed Engl

Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Published: August 2022

The asymmetric hydroaminocarbonylation of olefins represents a straightforward approach for the synthesis of enantioenriched amides, but is hampered by the necessity to employ CO gas, often at elevated pressures. We herein describe, as an alternative, an enantioselective hydrocarbamoylation of alkenes leveraging dual copper hydride and palladium catalysis to enable the use of readily available carbamoyl chlorides as a practical carbamoylating reagent. The protocol is applicable to various types of olefins, including alkenyl arenes, terminal alkenes, and 1,1-disubstituted alkenes. Substrates containing a diverse range of functional groups as well as heterocyclic substructures undergo functionalization to provide α- and β-chiral amides in good yields and with excellent enantioselectivities.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9329210PMC
http://dx.doi.org/10.1002/anie.202206692DOI Listing

Publication Analysis

Top Keywords

enantioselective hydrocarbamoylation
8
hydrocarbamoylation alkenes
8
alkenes
4
alkenes asymmetric
4
asymmetric hydroaminocarbonylation
4
hydroaminocarbonylation olefins
4
olefins represents
4
represents straightforward
4
straightforward approach
4
approach synthesis
4

Similar Publications

Enantioselective Hydrocarbamoylation of Alkenes.

Angew Chem Int Ed Engl

August 2022

Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

The asymmetric hydroaminocarbonylation of olefins represents a straightforward approach for the synthesis of enantioenriched amides, but is hampered by the necessity to employ CO gas, often at elevated pressures. We herein describe, as an alternative, an enantioselective hydrocarbamoylation of alkenes leveraging dual copper hydride and palladium catalysis to enable the use of readily available carbamoyl chlorides as a practical carbamoylating reagent. The protocol is applicable to various types of olefins, including alkenyl arenes, terminal alkenes, and 1,1-disubstituted alkenes.

View Article and Find Full Text PDF

Diaminophosphine oxide ligand enabled asymmetric nickel-catalyzed hydrocarbamoylations of alkenes.

J Am Chem Soc

August 2013

Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.

Chiral trivalent phosphorus species are the dominant class of ligands and the key controlling element in asymmetric homogeneous transition-metal catalysis. Here, novel chiral diaminophosphine oxide ligands are described. The arising catalyst system with nickel(0) and trimethylaluminum efficiently activates formamide C-H bonds under mild conditions providing pyrrolidones via intramolecular hydrocarbamoylation in a highly enantioselective manner with as little as 0.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!