Naturalproductman’s Blog

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Archive for the ‘Gold’ Category

Gold cyclization

Posted by naturalproductman on March 7, 2014

Stephen Hashmi and co-workers from Ruprecht-Karls-Universität Heidelberg have reported in ACIE on a gold catalyzed cyclization of terminal alkynes.

gold

ACIE paper

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

Gold catalyzed sigmatropic rearrangement

Posted by naturalproductman on January 20, 2014

Chepuri Ramana and colleague at CSIR have reported in Chem Comm on a gold catalyzed rearrangement of allenyl ethers.

rearrangement

Chem Comm paper

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

Asymmetric gold catalysis

Posted by naturalproductman on August 30, 2013

Huw Davies and colleague have reported in JACS on an asymmetric gold catalyzed [3+2] reaction.

3+2

JACS paper

Posted in Asymmetric, Cascade Reactions, Gold, Methodology, Transition Metal | Leave a Comment »

Gold catalyzed [2+2]

Posted by naturalproductman on March 20, 2013

Antonio Echavarren and co-workers from ICIQ in Spain have reported in Org Lett on a gold catalyzed intramolecular [2+2] between an alkene and alkyne.

[2+2]

OL paper

Posted in Cycloaddition, Gold, Methodology, Pericyclic reactions, Transition Metal, [2+2] | Leave a Comment »

Alkynoates and allylic ethers

Posted by naturalproductman on February 27, 2013

Young Ho Rhee and co-workers from Pohang University of Science and Technology have reported in Org Lett on a gold catalyzed coupling of an alkynoate and allylic ether.

ether

OL paper

Posted in Cascade Reactions, Gold, Mechanistic, Methodology, Sigmatropic Rearrangements, Transition Metal | Leave a Comment »

Imino-Nazarov reaction

Posted by naturalproductman on November 8, 2012

Richard Hsung and co-workers published in Org Lett on an imino Nazarov reaction catalyzed by gold and silver.

imino Nazarov

OL paper

Posted in Cascade Reactions, Gold, Methodology, Named Reactions, Nazarov cyclization, Transition Metal | Leave a Comment »

[2+2] by cationic gold

Posted by naturalproductman on October 17, 2012

Jose Gonzalez and co-workers from the University of Oviedo have reported in ACIE on a cationic gold catalyzed [2+2] reaction.

2+2

ACIE paper

Posted in Gold, Methodology, Transition Metal, [2+2] | Leave a Comment »

Oxazole synthesis intermolecularly

Posted by naturalproductman on October 11, 2012

Liming Zhang and co-workers at UCSB have reported in JACS on an approach to access oxazoles through an intermolecular coupling between an amide and an alkyne.  This method uses gold and is good because many ways to make oxazoles intramolecularly are known but not intermolecularly.

intermolecular

JACS paper

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

Biaryl synthesis

Posted by naturalproductman on October 4, 2012

Christopher Russell and colleagues at the University of Bristol have reported in Science on a gold catalyzed C-H activation approach for biaryl synthesis.

Science paper

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

Quinocarcin synthesis

Posted by naturalproductman on August 13, 2012

Hiroaki Ohno and co-workers from Kyoto University have reported in ACIE on the synthesis of quinocarcin.

alkaloid

ACIE paper

Posted in Alkaloids, Cascade Reactions, Gold, Methodology, Total Synthesis, Transition Metal | Leave a Comment »

 
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