Rapid and Reusable Copper Catalytic System for Allylic Oxidation of Olefins in Hexafluoroisopropanol as Solvent
作者:Fabienne Fache、Olivier Piva
DOI:10.1055/s-2002-35574
日期:——
Cu2O mixed with perfluorododecanoic acid C11F23COOH and t-butyl peroxybenzoate in hexafluoroisopropanol led to a rapid and reusable catalytic system for the Kharasch-Sosnovsky reaction.
Allylsulfones through Palladium‐Catalyzed Allylic C−H Sulfonylation of Terminal Alkenes
作者:Tingting Chen、Jassmin Lahbi、Gianluigi Broggini、Alexandre Pradal、Giovanni Poli
DOI:10.1002/ejoc.202201493
日期:2023.2.17
distinct protocols for the preparation of allylsulfones via Pd(II)-catalyzed allylicC−H activation. While the former protocol consists of a direct Pd(II)-catalyzed oxidative C−Hallylicsulfonylation in the presence of sulfinate anions, the latter involves a sequential one-pot Pd(II)-catalyzed C−Hallylic acetoxylation followed by a Pd(0)-catalyzed sulfonylation.
Redox-Neutral Atom-Economic Rhodium-Catalyzed Coupling of Terminal Alkynes with Carboxylic Acids Toward Branched Allylic Esters
作者:Alexandre Lumbroso、Philipp Koschker、Nicolas R. Vautravers、Bernhard Breit
DOI:10.1021/ja1108613
日期:2011.3.2
A new method for the preparation of a wide range of branched allylic esters from terminal alkynes that proceeds via a redox-neutral propargylic CH activation employing a rhodium(I)/DPEphos catalyst is reported.
An Efficient Protocol of Iridium-Catalyzed Allylic Substitution Reaction and Its Application to Polymer Synthesis: Complementary Regio- and Stereoselective Allylation Polycondensation via Ir and Pd Catalyses
作者:Nobuyoshi Nomura、Susumu Komiyama、Hiroyuki Kasugai、Marie Saba
DOI:10.1021/ja076019k
日期:2008.1.1
An efficient protocol of the Ir-catalyzed allylic substitution reaction is reported using N,O-bis (bimethylsilyl]acetamide as a base in the presence of nBu(4)NF as a cocatalyst. The reaction completely proceeded under very mild conditions, and a branched allylated compound that is easy to access via the Tsuji-Trost reaction can be synthesized. The reaction system is practical enough to be applicable for polymer syntheses. The Ir- and Pd-catalyzed allylation polycondensations generally show complementary regio- and stereoselectivities. The Ir-catalyzed reaction is versatile, and a mixed dual regioselectivity such as a branched-linear selectivity on each electrophile can also be achieved.
Reactions of t-Butyl Peresters. I. The Reaction of Peresters with Olefins<sup>1</sup>