作者:Douglas C. Behenna、Justin T. Mohr、Nathaniel H. Sherden、Smaranda C. Marinescu、Andrew M. Harned、Kousuke Tani、Masaki Seto、Sandy Ma、Zoltán Novák、Michael R. Krout、Ryan M. McFadden、Jennifer L. Roizen、John A. Enquist、David E. White、Samantha R. Levine、Krastina V. Petrova、Akihiko Iwashita、Scott C. Virgil、Brian M. Stoltz
DOI:10.1002/chem.201003383
日期:2011.12.9
functions with nearly identical efficiency in terms of yield and enantioselectivity. Catalyst discovery and development, the optimization of reaction conditions, the exploration of reactionscope, and applications in target‐directed synthesis are reported. Experimental observations suggest that these alkylationreactions occur through an unusual inner‐sphere mechanism involving binding of the prochiral
<b>Preparation of Indoles from </b>
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<b>-Alkynyltrifluoroacetanilides Through the Aminopalladation-Reductive Elimination Process</b>
作者:Sandro Cacchi、Giancarlo Fabrizi、Luca Parisi
DOI:10.1055/s-2004-815993
日期:——
The functionalized pyrrole nucleus contained in the indole system has been assembled via the palladium-catalyzed reaction of o-alkynyltrifluoroacetanilides with organic halides/triflates or allyl carbonates. In the presence of carbon monoxide, a three-component reaction can take place and indole derivatives incorporating a molecule of carbon monoxide have been obtained.
Synthesis of α-amino acids using transition metal catalysis - alkylation of schiff bases derived from α-amimo acid esters (regio, stereo - selectivity)
the synthesis of γ,δ-unsaturated α-amino acid esters is described. Schiff bases derived from glycine and alanine esters were alkylated in the presence of palladium or molybdenumcatalysts under neutral or basic conditions using allylic carbonates, esters or halides, (20–95% yield). These less stabilized nucleophiles reacted with the η3 allyl species on the side opposite to the palladium and they can
Palladium catalyzed c-allylation of highly acidic carbo and heterocyclic β-dicarbonyl compounds
作者:M. Prat、M. Moreno-Mañas、J. Ribas
DOI:10.1016/s0040-4020(01)86091-9
日期:1988.1
Highly acidic carbo and heterocyclic β-dicarbonyl compounds such as barbituric acid, 3,5-dimethyl-2-1,2,6-thiadiazine 1,1-dioxide, cyclohexane-1,3-dione, tetronicacids, Meldrum acid and 1,2-diphenylpyrazolidine-3,5-dione are efficiently C-allylated with primary and secondary allylating agents under palladium catalysis.