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Keywords: Asymmetric Catalysis; C-H Functionalization; Carbene Insertion; Chiral Diene; Unprotected Indoles EN Asymmetric Catalysis C-H Functionalization Carbene Insertion Chiral Diene Unprotected Indoles 1 1 1 08/18/22 20220822 NES 220822 B Asymmetrische Katalyse b . Asymmetric Catalysis, C-H Functionalization, Carbene Insertion, Chiral Diene, Unprotected Indoles Frontispiz: Rhodium(I) Carbene-Promoted Enantioselective C-H Functionalization of Simple Unprotected Indoles, Pyrroles and Heteroanalogues: New Mechanistic Insights. [Extracted from the article]

Review: 104 refs. [ABSTRACT FROM AUTHOR]

A highly efficient Rh-catalyzed asymmetric tandem arylation/cyclization of oxygen or nitrogen-containing 5-alkynones with arylboronic acids is achieved by commercially available (R)-BINAP as ligand. [ABSTRACT FROM AUTHOR]

The easy and practical title synthesis affords a variety of optically active tertiary α-hydroxyesters. [ABSTRACT FROM AUTHOR]

A diagram is presented which provides information on the enantioselective synthesis of chiral 3-aryl-1-indanones through rhodium-catalyzed asymmetric intramolecular.

A new recyclable PEG-bound bi-cinchona alkaloid ligand has been developed for homogeneous catalytic asymmetric aminohydroxylation; it can be easily recovered by precipitation and reused more than five times without any significant loss in its catalytic efficiency. [Copyright &y& Elsevier]

Three 1,1′-binaphthyl-based diastereomeric chiral ligands containing conformation-defined 3,3′-aryl substituents are synthesized and characterized. These compounds are isolated from the product mixture of the Suzuki coupling of (S)-3,3′-diiodo-2,2′-bis-methoxymethoxy-[1,1′]binaphthalenyl with 2-methoxy-1-naphthylboronic acid. The absolute structures of these compounds are determined by a single crystal X-ray analysis of the (S,S,S)-diastereomer. Among the three diastereomers, i.e. (S,S,S), (R,S,S) and (R,S,R), the (S,S,S) compound shows the highest catalytic activity as well as the highest enantioselectivity for the diethylzinc addition to aldehydes. At 0°C in toluene solution, 5 mol% of the (S,S,S) isomer catalyzed the reaction of diethylzinc with both aromatic and aliphatic aldehydes with up to 96% ee and 90% yield. The other two isomers show quite a low catalytic activity and enantioselectivity. This demonstrates that the 3,3′-aryl conformation of the 1,1′-binaphthyl ligands plays a very important role in the catalytic process. The study of these diastereomeric compounds provides new insights into the design of chiral 1,1′-binaphthyl-based monomer as well as polymer catalysts for asymmetric catalysis. [Copyright &y& Elsevier]

The method provides a highly enantioselective access to chiral α‐arylalkyl‐substituted benzosultams and benzosulfamidates. [ABSTRACT FROM AUTHOR]

For the first time, a highly enantioselective rhodium-catalyzed arylation of benzoxazinones and quinoxalinones is realized by employing an unsaturated chiral sulfoxide ligand. [ABSTRACT FROM AUTHOR]

An abstract of the article "Rhodium-Catalyzed Highly Enantioselective Arylation of Cyclic Diketimines: Efficient Synthesis of Chiral Tetrasubstituted 1,2,5-Thiadiazoline 1,1-Dioxides" is presented.

The article presents the steps of chemical reactions involved in the construction of tetrasubstituted carbon stereocenters.

Various biologically relevant enantio-enriched 1,4-isochromanediones [cf. [ABSTRACT FROM AUTHOR]

Compared to established Friedel-Crafts approaches the current method shows no dependence on the electronic nature of the substrates. [ABSTRACT FROM AUTHOR]

The article presents chemical equations for article " Construction of Cyclic Sulfamidates Bearing Two gem-Diaryl Stereocenters Through a Rhodium-Catalyzed Stepwise Asymmetric Arylation Protocol" by Y.-F. Zhang and others published in 2016 issue of journal "Organic Letter ."

The article presents chemical equations related to the article "Rhodium(I)-Catalyzed Asymmetric Carbene Insertion into B-H Bonds: Highly Enantioselective Access to Functionalized Organoboranes" published in the periodical "Journal of the American Chemical Society" in 2015.

Cyclization of 2-bromobenzaldehydes with anilines easily affords a broad range of acridines. [ABSTRACT FROM AUTHOR]

This method can be extended to dihydroindole (IX) and pyrrole (XI) as coupling partner. [ABSTRACT FROM AUTHOR]