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The development of multicomponent ligands to improve catalytic reactivity and selectivity remains a significant challenge for the synthesis of chiral building blocks. Here, a modular synthesis of structurally diverse multiligated platinum complexes, characterized by X‐ray crystallography, was revealed to open up a previously inaccessible reaction space. A library of more than 16 binary component‐ligated platinum complexes was identified as a practical toolkit to enable faster screening. The isolated bench‐stable PtII(oxazoline)(phosphine) complex paired with a chiral copper complex exhibits fundamentally new cooperative reactivity. The newly designed Pt/Cu dual catalytic system contributed to the development of highly enantioselective vinylogous addition reactions between a Pt‐activated electrophilic α,β‐unsaturated carbene and a Cu‐activated nucleophile, resulting in a reliable process for the asymmetric synthesis of valuable functionalized indoles in good yields and excellent enantioselectivities. [ABSTRACT FROM AUTHOR]

Diarylamines and related scaffolds are ubiquitous atropisomeric chemotypes in biologically active natural products. However, the catalytic asymmetric synthesis of these axially chiral compounds remains largely unexplored. Herein, we report that a BINOL‐derived chiral phosphoric acid (CPA) successfully catalyzed the atroposelective coupling of quinone esters and anilines through direct C−N bond formation to afford N‐aryl quinone atropisomers with an unprecedented intramolecular N−H−O hydrogen bond within a six‐membered ring in good yields and enantioselectivities with the quinone ester as both the electrophile and the oxidant. A gram‐scale experiment demonstrated the utility of this synthetic protocol. Moreover, this methodology provides a platform for the synthesis of structurally diverse secondary amine atropisomers by nucleophilic addition. [ABSTRACT FROM AUTHOR]

A simplified and appealing strategy via a chiral catalyst to facilitate the electrochemical process and provide asymmetric induction of radical reactions is particularly desirable and would have potential applications in electrosynthesis, organic chemistry, and drug discovery. Here, we introduced a novel electrolytic system that diverts the standard ionic reactivity to new catalytic functions, enabling mechanistically distinct single‐electron transfer‐based enantioselective routes to exhibit a brand‐new pattern of reactivity—electricity‐driven asymmetric catalysis as a privileged chiral platform for enantioselective radical allylation. The nickel‐catalyzed activation of nucleophiles triggered a single‐electron transfer process to provide a chiral catalyst‐bound radical cation intermediate, which could be applied as an alternative strategy for the development of stereocontrolled radical reactions. [ABSTRACT FROM AUTHOR]

An enantioselective bifunctional squaramide‐catalyzed detrifluoroacetylative alkylation reaction has been developed under electrochemical conditions. The unified strategy based on this key tandem methodology has been divergently explored for the asymmetric synthesis of fluorine‐containing target molecules with good stereocontrol (up to 95 % ee). Furthermore, this asymmetric catalytic reaction combines the benefits of electrosynthesis and organocatalysis for the preparation of biologically relevant products containing C‐F tertiary stereogenic centers. [ABSTRACT FROM AUTHOR]

The field of electrochemical synthesis has developed rapidly over the last decade and has provided alternative synthetic methods with the absence of stoichiometric amounts of chemical oxidants or reductants. Although sustainable electrosynthetic procedures have been developed, relatively few examples of highly enantioselective catalytic electrosynthesis have been reported to date. The development of general strategies for electrochemical enantiocontrol has thus proven to be a considerable challenge. This Minireview highlights the current knowledge and recent advances in the synthetic utility of electrochemical transformations for asymmetric synthesis. Specifically, three major types of catalytic enantioselective strategy in electrosynthesis are outlined, including electrochemical activation of chiral catalyst‐bound substrates, asymmetric cascade electrochemical processes, and chemically modified chiral electrodes. [ABSTRACT FROM AUTHOR]

Lewis‐acid catalysis and electrochemistry represent two powerful fields that have found widespread application in organic chemistry. Reported herein is an asymmetric electrosynthesis in combination with a chiral Ni catalyst leading to an intermolecular alkylation reaction in good yields with excellent enantioselectivities (up to 97 % ee). Mechanistic studies suggest that the Lewis‐acid‐bound radical intermediate from a single‐electron anodic oxidation selectively reacts with the benzylic radical species to generate the desired adducts. [ABSTRACT FROM AUTHOR]

Chiral phosphines were found to catalyze the enantioselective asymmetric γ‐addition of heteroaromatic compounds to allenoates in good yields with high enantiomeric ratios and regioselectivity in the presence of (S)‐BINOL. Both pyrazole and imidazole could be employed in this process. The synthetic value of these γ‐addition products was demonstrated by the preparation of biologically relevant molecules and structural scaffolds. Remarkably, the synthetic utility of this strategy was demonstrated through a two‐step synthesis of a Janus kinase (JAK) inhibitor. [ABSTRACT FROM AUTHOR]

A highly enantioselective N-heterocyclic carbene (NHC) catalyzed formal [3+2] annulation of α,β-unsaturated aldehydes with azaaurones or aurone generating spiro-heterocycles has been developed. The protocol represents a unique NHC-activation-based approach to access spiro-heterocyclic derivatives bearing a quaternary stereogenic center with high optical purity (up to 95 % ee). [ABSTRACT FROM AUTHOR]

The structure of the title molecule, C15H13N3O4, is stabilized by intermolecular N—H...O hydrogen bonds. There are two crystallographically independent molecules in the asymmetric unit. The dihedral angles between the benzene rings in the two molecules are 86.75 (9) and 8.3 (2)°. [ABSTRACT FROM AUTHOR]