Publications associées à Auxiliaire chiral

Catalytic Enantioselective Transformations Involving C-H Bond Cleavage by Transition-Metal Complexes

Nicolai Cramer, Shouguo Wang, Christopher Gordon Newton, Caio Costa Oliveira

The development of new methods for the direct functionalization of unactivated C-H bonds is ushering in a paradigm shift in the field of retrosynthetic analysis. In particular, the catalytic enantioselective functionalization of C-H bonds represents a high ...

2017

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

Jérôme Waser, Johannes Preindl, Shyamal Chakrabarty

Many abundant and highly bioactive natural alkaloids contain an indolizidine skeleton. A simple, high yielding method to synthesize this scaffold from N-heterocycles was developed. A wide range of pyridines, quinolines and isoquinolines reacted with donor- ...

2017

Catalytic Enantioselective Double Carbopalladation/C−H Functionalization with Statistical Amplification of Product Enantiopurity: A Convertible Linker Approach

Qian Wang, Jieping Zhu, Shuo Tong, Aurore Kamilia Limouni

Combining a catalytic enantioselective reaction with dimerization in a single operation is an efficient way to upgrade the enantiomeric excesses (ee) of the product. Palladium-catalyzed reaction of N-(2-iodophenyl)-N-methyl methacrylamide derivatives with ...

Wiley-Blackwell2017

Enantioselective Synthesis of Quaternary α-Amino Acids Enabled by the Versatility of the Phenylselenonyl Group

Qian Wang, Jieping Zhu, Antonin François Roland Clemenceau

A novel Cinchona alkaloid-catalyzed enantioselective conjugate addition of alpha-alkyl substituted alpha-nitroacetates to phenyl vinyl selenone was developed. The resulting enantio-enriched alpha,alpha-dialkyl substituted alpha-nitroacetates were subsequen ...

Wiley-Blackwell2016

Plaquette order in the SU(6) Heisenberg model on the honeycomb lattice

Frédéric Mila, Karlo Penc, Pierre Marcel Nataf, Miklos Lajko

We revisit the SU(6) Heisenberg model on the honeycomb lattice, which has been predicted to be a chiral spin liquid by mean-field theory [G. Szirmai et al., Phys. Rev. A 84, 011611(R) (2011)]. Using exact diagonalizations of finite clusters, infinite proje ...

2016

Synthesis and characterization of mixed ligand chiral nanoclusters

Francesco Stellacci, Zekiye Pelin Güven, Kellen Michael Harkness

Chiral mixed ligand silver nanoclusters were synthesized in the presence of a chiral and an achiral ligand. While the chiral ligand led mostly to the formation of nanoparticles, the presence of the achiral ligand drastically increased the yield of nanoclus ...

Royal Society of Chemistry2016

Asymmetric Catalysis Powered by Chiral Cyclopentadienyl Ligands

Nicolai Cramer, David Kossler, Christopher Gordon Newton

Application of chiral derivatives of the versatile and ubiquitous cyclopentadienyl ligand has long remained an underdeveloped area in asymmetric catalysis. In this Perspective we highlight recent exciting results that demonstrate their enormous potential. ...

American Chemical Society2016

An Enantioselective Total Synthesis of (−)-Isoschizogamine

Qian Wang, Jieping Zhu, Xu Bao, Zhengren Xu

A concise enantioselective total synthesis of (¢)- isoschizogamine, a complex bridged polycyclic monoterpene indole alkaloid, was accomplished. N-Alkylation of an enantio- enriched imine with an alkyl iodide afforded an iminium salt, which, upon heating by ...

Wiley-Blackwell2015

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Auxiliaire chiral

Catalytic Enantioselective Transformations Involving C-H Bond Cleavage by Transition-Metal Complexes

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

Catalytic Enantioselective Double Carbopalladation/C−H Functionalization with Statistical Amplification of Product Enantiopurity: A Convertible Linker Approach

Enantioselective Synthesis of Quaternary α-Amino Acids Enabled by the Versatility of the Phenylselenonyl Group

Plaquette order in the SU(6) Heisenberg model on the honeycomb lattice

Synthesis and characterization of mixed ligand chiral nanoclusters

Racemization of undesired enantiomers: Immobilization of mandelate racemase and application in a fixed bed reactor

One-Pot Three-Component Synthesis of Vicinal Diamines via In Situ Aminal Formation and Carboamination

Asymmetric Catalysis Powered by Chiral Cyclopentadienyl Ligands

An Enantioselective Total Synthesis of (−)-Isoschizogamine

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Chattez avec Graph Search

Racemization of undesired enantiomers: Immobilization of mandelate racemase and application in a fixed bed reactor

Catalytic Enantioselective Transformations Involving C-H Bond Cleavage by Transition-Metal Complexes

Dearomatization of electron poor six-membered N-heterocycles through [3+2] annulation with aminocyclopropanes

One-Pot Three-Component Synthesis of Vicinal Diamines via In Situ Aminal Formation and Carboamination

Enantioselective Synthesis of Quaternary α-Amino Acids Enabled by the Versatility of the Phenylselenonyl Group

Asymmetric Catalysis Powered by Chiral Cyclopentadienyl Ligands

Plaquette order in the SU(6) Heisenberg model on the honeycomb lattice

Catalytic Enantioselective Double Carbopalladation/C−H Functionalization with Statistical Amplification of Product Enantiopurity: A Convertible Linker Approach

Synthesis and characterization of mixed ligand chiral nanoclusters

An Enantioselective Total Synthesis of (−)-Isoschizogamine