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Archive for the ‘Transition Metal’ Category

Reactions involving transition metals

Allenyl gold complexes

Posted by naturalproductman on September 8, 2014

Concepcion Gimeno and co-workers from ISQCH in Spain have reported in JACS on an allenyl gold complex. I wonder how they would react with electrophiles.

allenyl gold

JACS paper

Posted in Allenes, Gold, Methodology, Transition Metal | Leave a Comment »

Scandium-catalyzed hydroarylation

Posted by naturalproductman on August 30, 2014

Zhaomin Hou and co-workers from RIKEN have reported in JACS on an enantioselective hydroarylation using a scandium complex.
Sc

JACS paper

Posted in C-H activation, Methodology, Scandium, Transition Metal | Leave a Comment »

Palladium catalyzed decarboxylative cycloaddition

Posted by naturalproductman on August 30, 2014

Yong Jian Zhang and co-workers at Shanghai Jiao Tong University have reported in ACIE on a palladium catalyzed decarboxylative cycloaddition.

palladium

ACIE paper

Posted in Cascade Reactions, Cycloaddition, Methodology, Palladium, Transition Metal | 1 Comment »

Palladium catalyzed decarboxylative cycloaddition

Posted by naturalproductman on August 30, 2014

Yong Jian Zhang and co-workers at Shanghai Jiao Tong University have reported in ACIE on a palladium catalyzed decarboxylative cycloaddition.

palladium

ACIE paper

Posted in Cascade Reactions, Cycloaddition, Methodology, Palladium, Transition Metal | Leave a Comment »

C-C bond cleavage with titanium

Posted by naturalproductman on August 28, 2014

Zhaomin Hou and co-workers at RIKEN (Saitama, JP) have reported in Nature on a titanium hydride complex that cleaves carbon-carbon bonds.

 

Nature paper

Posted in C-C Bond Breaking, Methodology, Titanium, Transition Metal | Leave a Comment »

Cyclobutenone ring expansion

Posted by naturalproductman on August 20, 2014

Guangbin Dong and colleague at UT Austin have reported in ACIE on the synthesis of cycloinumakiol through a rhodium catalyzed cascade reaction that forms the tetracyclic ring structure of the compound.

C-C

ACIE paper

Posted in Methodology, One pot, Rhodium, Ring expansion, Ring forming, Ring Opening, Total Synthesis, Transition Metal | Leave a Comment »

Z-selective olefin metathesis

Posted by naturalproductman on August 20, 2014

Robert Grubbs and co-workers have reported in JACS on factors that influence Z-selective olefin metathesis.

Z-selective

JACS paper

Posted in Metathesis, Methodology, Ring forming, Ruthenium, Transition Metal | Leave a Comment »

Electrocyclic ring opening to ketonitrones

Posted by naturalproductman on July 27, 2014

Masahiro Terada and co-workers from Tohoku University have reported in Organic Letters on a copper-catalyzed rearrangement to form alpha,beta-unsaturated ketonitrones.

nitrone

OL paper

Posted in Cascade Reactions, Copper, Electrocyclization, Mechanistic, Methodology, Pericyclic reactions, Transition Metal | Leave a Comment »

Aryl halide couplings with Sp3-carbons

Posted by naturalproductman on July 27, 2014

Gary Molander and colleagues reported in Science on a photoredox nickel dual catalysis for a cross coupling reaction between an sp3-hybridized organoboron and an aryl halide.

Science paper (Molander)

In the same issue, David Macmillan and co-workers have reported on a photoredox reaction involving a nickel catalyzed coupling between an sp3-alpha-carboxyl and an aryl halide.

Science paper (Macmillan)

 

Posted in Cascade Reactions, cross coupling, Light Mediated, Methodology, Nickel, Transition Metal | Leave a Comment »

C-O bond cleavage with Ir

Posted by naturalproductman on July 27, 2014

Alan Goldman and co-workers from Rutgers have reported in ACIE on an iridium pincer complex catalyzed C-O bond cleavage.

C-O

ACIE paper

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

 
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