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Archive for the ‘Gold’ Category

Sufur ylide chemistry – intramolecular cyclopropanation

Posted by naturalproductman on May 28, 2015

Nuno Maulide and co-workers from the University of Vienna have reported in JOC on an intramolecular cyclopropanation from a sulfur slide precursor and what follows is a nice mechanistic investigation.

sulfur

JOC paper

Posted in Computational, DFT, Gold, Mechanistic, Methodology, Transition Metal | Leave a Comment »

Methylene transfer

Posted by naturalproductman on May 2, 2015

Itaru Nakamura and co-workers from Tohoku University have reported in ACIE on a gold catalyzed methylene transfer sequence to access isoxazolines.

methylene

ACIE paper

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

Gold catalyzed spiroketalization

Posted by naturalproductman on April 12, 2015

Aaron Aponick and co-workers from the University of Florida have used a trimethylphosphine additive to improve the gold catalyzed spiroketalization for spirastrellolide.

gold

OL paper

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

Gold cascade

Posted by naturalproductman on March 5, 2015

Dean Toste and co-workers have reported in JACS on a gold catalyzed Rautenstrauch cascade reaction.

gold

JACS paper

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

Gold vinylidene = Intramolecular C-H activation

Posted by naturalproductman on January 23, 2015

Jose Gonzalez and co-workers from the University of Oviedo have reported in ACIE on a gold vinylidene approach for intramolecular C-H activation.

gold vinylidine

ACIE paper

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

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 »

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 »

 
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