Recent advances in chiral imino-containing ligands for metal-catalyzed asymmetric transformations

X Chen, Z Lu - Organic & Biomolecular Chemistry, 2017 - pubs.rsc.org
In this review, the recent applications of a variety of chiral imino-containing ligands classified
by different types of metal-catalyzed asymmetric reactions are summarized. The progress …

Enantioselective silicon-directed Nazarov cyclization

J Cao, MY Hu, SY Liu, XY Zhang, SF Zhu… - Journal of the …, 2021 - ACS Publications
The Nazarov electrocyclization reaction is a convenient, widely used method for construction
of cyclopentenones. In the past few decades, catalytic asymmetric versions of the reaction …

Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2‐Cyclopentenones

K Komatsuki, Y Sadamitsu, K Sekine… - Angewandte Chemie …, 2017 - Wiley Online Library
Highly substituted 2‐cyclopentenones were stereospecifically and regioselectively
constructed with high catalytic efficiency through Lewis‐acid catalyzed decarboxylative …

Leveraging the Halo-Nazarov Cyclization for the Chemodivergent Assembly of Functionalized Haloindenes and Indanones

C Holt, G Alachouzos, AJ Frontier - Journal of the American …, 2019 - ACS Publications
In this report, we describe a halo-Prins/aryl halo-Nazarov cyclization strategy that employs
readily available starting materials, inexpensive reagents, and convenient reaction …

[HTML][HTML] Enantioselective Nazarov cyclization of indole enones cooperatively catalyzed by Lewis acids and chiral Brønsted acids

GP Wang, MQ Chen, SF Zhu, QL Zhou - Chemical Science, 2017 - pubs.rsc.org
Enantioselective control of the chirality of a tertiary α-carbon in the products of a Nazarov
cyclization of enones is challenging because the reaction involves an enantioselective …

Asymmetric nazarov cyclizations catalyzed by chiral‐at‐metal complexes

T Mietke, T Cruchter, VA Larionov… - Advanced Synthesis …, 2018 - Wiley Online Library
The application of Lewis acidic chiral‐at‐metal complexes of iridium (III) and rhodium (III) as
catalysts for the asymmetric polarized Nazarov cyclization of dihydropyran‐and indole …

Synthesis of model southern rim structures of photosynthetic tetrapyrroles and phyllobilins

ATN Tran, Z Wu, DTM Chung, P Nalaoh… - New Journal of …, 2023 - pubs.rsc.org
The photosynthetic tetrapyrroles and their catabolic products (phyllobilins) share similar
structural features in the southern rim encompassing rings C–E with variation in the degree …

Chiral Brønsted acid catalyzed enantioselective dehydrative Nazarov-type electrocyclization of aryl and 2-thienyl vinyl alcohols

J Jin, Y Zhao, A Gouranourimi, A Ariafard… - Journal of the …, 2018 - ACS Publications
An efficient chiral Brønsted acid-catalyzed enantioselective dehydrative Nazarov-type
electrocyclization (DNE) of electron-rich aryl-and 2-thienyl-β-amino-2-en-1-ols is described …

Asymmetric Nazarov Cyclizations of Unactivated Dienones by Hydrogen‐Bond‐Donor/Lewis Acid Co–Catalyzed, Enantioselective Proton‐Transfer

JB Metternich, M Reiterer… - Advanced synthesis & …, 2020 - Wiley Online Library
We report an enantioselective Nazarov cyclization catalyzed by chiral hydrogen‐bond‐
donors in concert with silyl Lewis acids. The developed transformation provides access to tri …

Recent progress on Nazarov cyclizations: the use of iron salts as catalysts in Ionic liquid solvent systems

T Itoh, T Nokami, M Kawatsura - The Chemical Record, 2016 - Wiley Online Library
Nazarov cyclization is an important and versatile method for the synthesis of five‐membered
carbocycles, and extensive studies have been conducted to optimize the reaction. Among …