Naturalproductman’s Blog

Hey, is that a natural product?!

Archive for the ‘Cooperative Catalysis’ Category

Looks like anothe case of cooperative catalysis

Posted by naturalproductman on February 6, 2011

Clement Mazet and co-workers at the Universite Geneve have published in ACIEE on a sequential iridium catalyzed isomerization of an allylic alcohol to an aldehyde followed by enamine catalysis to form an alpha-substituted aldehyde.

iridium

 

ACIEE paper

Advertisements

Posted in Cooperative Catalysis, Iridium, Methodology, Transition Metal | Leave a Comment »

Cooperative Catalysis

Posted by naturalproductman on January 11, 2011

Yoshiaki Nishibayashi and co-workers from the University of Tokyo have published in Organic Letters on a cooperative catalysis approach to add a propargylic group onto the alpha position of an aldehyde.

cooperative

 

OL paper

Posted in Asymmetric, Cascade Reactions, Cooperative Catalysis, Copper, Methodology, Transition Metal | Leave a Comment »

Aryl Aldehydes via Cooperative Catalysis

Posted by naturalproductman on July 23, 2010

Junliang Xiao and co-workers from the University of Liverpool have published in Organic Letters on a cooperative catalysis approach to acylate aryl chlorides by combining aldehydes with corresponding aryl chlorides using palladium and pyrrolidine.

cooperative catalysis

OL paper

Posted in Cooperative Catalysis, Methodology, Organocatalytic, Palladium, Transition Metal | Leave a Comment »

Ruthenium- and Organo-Catalyzed Reaction

Posted by naturalproductman on July 14, 2010

Yoshiaki Nishibayashi and co-workers at the University of Tokyo have published in ACIEE on a cooperative catalysis approach to combining a propargylic alcohol with an aldehyde.

cooperative catalysis

ACIEE paper

Posted in Cooperative Catalysis, Methodology, Organocatalytic, Ruthenium, Transition Metal | Leave a Comment »

Indium-Catalyzed Cyclization

Posted by naturalproductman on May 12, 2010

Virginie Ratovelomanana-Vidal and co-workers at Chimie ParisTech have published in Organic Letters on what looks like an indium promoted Conia-Ene cyclization.

indium

OL paper

Posted in Cascade Reactions, Conia-Ene, Cooperative Catalysis, Methodology, Named Reactions, Ring forming | Leave a Comment »

A New Way for Five Membered Rings

Posted by naturalproductman on March 29, 2010

Karl Scheidt and co-workers at Northwestern have recently published in JACS on a novel approach for the enantioselective synthesis of five membered rings. As expected from Scheidt chemistry, the reaction involves the use of N-heterocyclic carbenes – however, there is also the use of titanium – two different catalysts involved in this system dubbed as cooperative catalysis.

5 membered

JACS paper

Posted in Asymmetric, Carbene, Cooperative Catalysis, Diastereoselective, Methodology, Ring forming, Titanium, Transition Metal | Leave a Comment »