57220-76-5Relevant articles and documents
One-step synthesis of oxodimethylenemethane-transition metal complexes and palladium-catalyzed cycloaddition reaction
Ikeda, Isao,Ohsuka, Akihiro,Tani, Kazuyoshi,Hirao, Toshikazu,Kurosawa, Hideo
, p. 4971 - 4974 (2007/10/03)
Some alkyl allyl carbonates and an allylammonium chloride bearing (1-(butyloxy)ethyl)oxy group at the 2-position of the allyl group were synthesized and successfully transformed to oxodimethylenemethane-palladium and -platinum complexes in one step by mixing with a transition metal-(0) and triphenylphosphine. On the basis of the confirmation of vinyl ether formation by 1H NMR, the generation of oxodimethylenemethane complexes was rationalized to occur through abstraction of the β-hydrogen on the acetal carbon by an alkoxide ion which was generated from the allyl carbonate upon oxidative addition of the transition metal. The palladium-catalyzed cycloaddition of the acetonylidene group to strained olefins also proceeded successfully by using these alkyl allyl carbonates.
On an (Oxatrimethylenemethane)palladium(0) Complex. An Unusual Palladium(0)-Catalyzed Cyclopropanation
Trost, Barry M.,Schneider, Stephan
, p. 4430 - 4433 (2007/10/02)
A study of the cycloadditions invoking (oxatrimethylenemethane)palladium as a transient intermediate in a catalytic cycle contrasts with the all-carbon system in giving rise to a net cycloaddition with electron-rich strained olefins rather than the
