133464-89-8Relevant academic research and scientific papers
A new method for the catalytic aldol reaction to ketones
Oisaki, Kounosuke,Suto, Yutaka,Kanai, Motomu,Shibasaki, Masakatsu
, p. 5644 - 5645 (2003)
A new method for the catalytic aldol reaction to ketones, using CuF·3PPh3·2EtOH complex as the catalyst and (EtO)3SiF as the additive, is described. The reaction can be applied to a wide range of ketones and trimethylsilyl enolates. On the basis of mechanistic studies, a working hypothesis for the catalytic cycle is proposed, in which the dynamic ligand exchange mediated by copper silicates produces the active copper enolate. Moreover, the present reaction can be extended to the catalytic enantioselective reaction using tol-BINAP as a chiral ligand. Copyright
PALLADIUM-CATALYZED PREPARATION OF α-ALLYL ESTERS AND α,β-UNSATURATED ESTERS FROM SATURATED ESTERS VIA THEIR KETENE SILYL ACETALS
Tsuji, Jiro,Takahashi, Kazuhiro,Minami, Ichiro,Shimizu, Isao
, p. 4783 - 4786 (2007/10/02)
Reaction of ketene silyl acetals with allylic carbonates in the presence of palladium-phosphine catalyst in dioxane gives α-allyl esters in high yields.When the reaction is carried out with phosphine-free palladium catalyst in nitriles, α,β-unsaturated esters are obtained in good yields.
