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Archive for the ‘Allenes’ Category

Reactions involving the use, synthesis, intermediates of allenes.

Alkaloid 205B synthesis

Posted by naturalproductman on February 10, 2015

Jin Kun Cha and colleague at Wayne State University have reported in JACS on a synthesis of alkaloid 205B.

205

JACS paper

Posted in Alkaloids, Allenes, Methodology, Total Synthesis | Leave a Comment »

Silacarboxylation of allenes

Posted by naturalproductman on December 6, 2014

Yasushi Tsuji and co-workers have reported in JACS on a copper catalyzed silacarboxylation of allenes using carbon dioxide and a silylborane.

JACS paper

Posted in Allenes, Copper, 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 »

Crinipellin A synthesis

Posted by naturalproductman on July 12, 2014

Hee-Yoon Lee and co-workers at KAIST have reported in JACS on the synthesis of crinipellin A.

synthesis

JACS paper

Posted in Allenes, Methodology, Total Synthesis | Leave a Comment »

Rh-catalyzed cycloisomerization

Posted by naturalproductman on June 7, 2014

Chisato Mukai and co-workers from Kanazawa University have reported in ACIE on a rhodium catalyzed cycloisomerization.
rhodium
 

ACIE paper

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

Omaezallene

Posted by naturalproductman on March 14, 2014

Tatsufumi Okino and co-workers from Hokkaido University have reported in ACIE on the synthesis of omaezallene.

omaezallene

ACIE paper

Posted in Allenes, Asymmetric, Methodology, Total Synthesis | 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 »

Chiral allene synthesis

Posted by naturalproductman on March 20, 2013

Doug Frantz and co-workers at UT San Antonio have reported in JACS on a palladium catalyzed asymmetric approach to synthesizing axially chiral allenes through beta-hydride elimination.

allene

JACS paper

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

Phosphine catalyzed C-N bond formation

Posted by naturalproductman on January 31, 2013

Greg Fu and co-workers reported on a C2-symmetric phosphine catalyst to

phosphine

ACIE paper

Posted in Allenes, C2-Symmetric, Methodology, Organocatalytic | Leave a Comment »

pyridines from allenes

Posted by naturalproductman on December 29, 2012

Andrei Yudin and co-workers from the University of Toronto have reported in OL on the synthesis of pyridines from allenes.

pyridines

OL paper

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

 
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