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Archive for the ‘Vanadium’ Category

Dual catalysis

Posted by naturalproductman on July 26, 2011

Barry Trost and co-workers have reported in JACS on a dual catalysis reaction using a vanadium allenoate and a palladium pi allyl unit to form alpha,beta-unsaturated ketones.

vanadium

JACS paper

Posted in Dual Catalysis, Methodology, Named Reactions, Palladium, Transition Metal, Vanadium | Leave a Comment »

Dual Catalysis

Posted by naturalproductman on January 25, 2011

Barry Trost and co-worker have published in JACS on a reaction involving dual catalysis. That is, a palladium catalyst and a vanadium catalyst independently reacting with two separate substrates then the two intermediate metal species join to make the product.  In this case, the palladium catalyst makes a pi-allyl intermediate from an allylic carbonate and the vanadium catalyst rearranges a propargylic alcohol to form an allenoxy vanadium intermediate.

dual catalysis

JACS paper

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

 
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