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Archive for the ‘Transition Metal’ Category

Reactions involving transition metals

Palladium – olefin/insertion cascade

Posted by naturalproductman on July 4, 2016

Vellaisamy Sridharan and co-workers from SASTRA University have reported in Organic Letters on a palladium catalyzed hydration olefin-insertion cascade.

 

OL paper

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

Sulfur ylides with copper allenylidenes

Posted by naturalproductman on July 4, 2016

Wen-Jing Xiao and co-workers from Central China Normal University have reported in JACS on an asymmetric [4+1] reaction between a copper allenylidene and sulfur ylide.

 

JACS paper

Posted in Asymmetric, Carbene, Copper, Methodology, Transition Metal | Leave a Comment »

Siloxydiene meets a 1,3-dicarbonyl

Posted by naturalproductman on June 16, 2016

Justin Mohr and co-workers at the University of Illinois in Chicago have reported in Organic Letters on a Mn-promoted oxidative coupling between a siloxydiene and a 1,3-dicarbonyl. They use 2.25 mol equivalents of Mn though so there’s room to make it better?

 

OL paper

Posted in Manganese, Transition Metal | Leave a Comment »

Alkoxycarbonylation of secondary bromides

Posted by naturalproductman on June 13, 2016

Erik Alexanian and colleague have reported in JACS on a Pd-catalyzed alkoxycarbonylation of secondary bromides using CO.

 

 

JACS paper

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

Cannabimovone synthesis

Posted by naturalproductman on May 29, 2016

Antonio Echavarran and co-workers from ICIQ have reported in ACIE on the synthesis of cannabimovone.

 

ACIE paper

Posted in alkyne, Cascade Reactions, Gold, Methodology, Structural Reassignment, Total Synthesis | Leave a Comment »

Methyl ether + Grignard

Posted by naturalproductman on May 29, 2016

Naoto Chatani and co-workers from Osaka University have reported in JACS on a methyl ether coupling reaction with a Grignard reagent.

 

JACS paper

Posted in cross coupling, Methodology, Nickel, Transition Metal | Leave a Comment »

Iron-catalyzed cross coupling between Grignard reagents and enol carbamates

Posted by naturalproductman on May 3, 2016

Doug Frantz and co-workers from UTSA have reported in ACIE on an iron-catalyzed cross-coupling reaction between enol carbamates and Grignard reagents.

 

ACIE paper

Posted in cross coupling, Iron, Methodology, Transition Metal | Leave a Comment »

Propargylic benzoate to allene

Posted by naturalproductman on April 19, 2016

Erick Carreira and colleague have reported in Organic Letters on a rhodium catalyzed synthesis of chiral allenes from propargylic benzoates.

 

OL paper

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

Desymmetrization with proline and Pd

Posted by naturalproductman on April 19, 2016

Yi-Xia Jia and co-workers from Zhejiang University have reported in JACS on an intramolecular desymmetrization by a Heck reaction.

 

JACS paper

Posted in Desymmetrization, Heck, Methodology, Mizoroki-Heck, Organocatalytic, Palladium, Transition Metal | Leave a Comment »

Palladium Carbenes

Posted by naturalproductman on April 19, 2016

Daniel Sole and co-workers at Universidad Complutense de Madrid have reported in ACIE on the generation of palladium carbenoids from diazo precursors to effect an intramolecular C-H insertion.

 

ACIE paper

Posted in Carbene, Methodology, Palladium | Leave a Comment »

 
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