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Archive for the ‘Transition Metal’ Category

Reactions involving transition metals

Reversing the epoxidation

Posted by naturalproductman on September 7, 2016

Rongbiao Tong and co-workers from the Hong Kong University of Science and Technology reported in Organic Letters on a copper catalyzed de-epoxidation reaction.

OL paper

Posted in Copper, Methodology | Leave a Comment »

C-H Allylation

Posted by naturalproductman on September 7, 2016

Hon-Wai Lam and co-workers from the University of Nottingham have reported in JACS on a rhodium catalyzed C-H allylation process.

 

JACS paper

Posted in C-H activation, Rhodium | Leave a Comment »

Carbonylative spirolactonization

Posted by naturalproductman on August 22, 2016

Mingji Dai and co-workers reported in JACS on a Pd-catalyzed spirolactonization.

 

JACS paper

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

Amidation-C-H activation cascade

Posted by naturalproductman on July 31, 2016

Santhosh Mhaske and colleague at CSIR have reported in Organic Letters on a palladium catalyzed amidation-C-H activation cascade.
OL paper

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

Diyne to cyclohexenone

Posted by naturalproductman on July 31, 2016

Radomir Salicic and co-workers from the University of Belgrade have reported in Organic Letters on a gold catalyzed cascade cyclization of a diyne.

 

OL paper

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

Enol triflates to alkynes

Posted by naturalproductman on July 31, 2016

Doug Frantz and colleague have reported in Organic Letters on a Pd-catalyzed conversion of a vinyl triflate to a disubstituted alkyne.

 

OL paper

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

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 »