Publications de Nicolai Cramer

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Atropo‐enantioselective C−H functionalization reactions are largely limited to the dynamic kinetic resolution of biaryl substrates through the introduction of steric bulk proximal to the axis of chirality. Reported herein is a highly atropo‐enantioselectiv ...

Chiral cyclopentadienyl (CpX) metal complexes are frequently used in asymmetric catalysis by virtue of their high reactivity and selectivity. Planar-chiral-only rhodium and iridium cyclopentadienyl complexes are particularly promising due to unrestricted c ...

A Cp*Rh(III)-catalyzed C-H/C-C bond activation sequence of cyclopropyl hydroxamates has been developed. The three-component process allows trapping of the intermediate rhodacycle with diazomalonates and an alcohol nucleophile to provide access to synthetic ...

Metal complexes coordinated by a single cyclopentadienyl (Cp) ligand are widely used, versatile catalysts, but their application to asymmetric reactions has been hindered by the difficulty of designing Cp substituents that effectively bias the coordination ...

The direct functionalization of non-activated C-H bonds, especially in an enantioselective manner, requires metal catalysts equipped with ligands with specifically designed properties. Examples for asymmetric C(sp(2))-H and C(sp(3))-H functionalizations us ...

In this issue of Chem, Dong and colleagues show that an engineered mixed carboxylate carbonate anhydride serves as an electrophilic trap in palladium/norbornene-catalyzed double functionalization of aryl iodides, enabling the introduction of the synthetica ...

Chiral cyclopentadienyl (Cp-x) group 9 metal complexes have become versatile catalysts for a variety of efficient enantioselective C-H functionalizations. Atropchiral binaphthyl-derived Cp-x ligands having tuning options at the 3,3'-positions present a rob ...

Rhodium(I)-catalyzed beta-carbon eliminations of tert-cyclobutanols followed by oxidative addition give benzorhoda(III)cyclopentenes. These key intermediates trigger intramolecular C-H arylations leading to beta-tetralones with quaternary stereogenic cente ...

Nicolai Cramer

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Axially Chiral Dibenzazepinones by a Palladium(0)-Catalyzed Atropo-enantioselective C-H Arylation

Enantiospecific Synthesis of Planar Chiral Rhodium and Iridium Cyclopentadienyl Complexes: Enabling Streamlined and Computer-Guided Access to Highly Selective Catalysts for Asymmetric C-H Functionalizations

Society and Chemistry They Are a-Changin'

Rhodium(III)-Catalyzed Cyclopropane C-H/C-C Activation Sequence Provides Diastereoselective Access to alpha-Alkoxylated gamma-Lactams

Chiral Cyclopentadienyl Ligands as Stereocontrolling Element in Asymmetric C-H Functionalization

Teaching Enantioselectivity to C-H Bond Functionalizations: Initial Steps of a Rather Long Shot

Designer Anhydride Clears the Path for Alkoxycarbonylations in Catellani Reactions

Rh-I, Ir-III ,and Co-III Complexes with Atropchiral Biaryl Cyclopentadienyl Ligands: Syntheses, Structures, and Catalytic Activities

Exploitation of Rh(I)-Rh(III) cycles in enantioselective C-C bond cleavages: access to beta-tetralones and benzobicyclo[2.2.2]octanones

Gold unleashes the power of three