Coupling between boron and silyl enolates (not a Mukaiyama-Michael)

At first glance, I thought it was a Mukaiyama-Michael reaction with the silyl enol ether to form a dicarbonyl product, but then you look carefully and see that the product is a 1,4-dicarbonyl (not 1,5-dicarbonyl) and the other reactant is a boron enolate.

JACS paper

Dual catalysis

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.

JACS paper

Dual Catalysis

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.

JACS paper