N-Triftosylhydrazones: A New Chapter for Diazo-Based Carbene Chemistry

Z Liu, P Sivaguru, G Zanoni, X Bi - Accounts of Chemical …, 2022 - ACS Publications
Conspectus Over recent decades, N-sulfonylhydrazones have attracted significant attention
in academic and industrial contexts owing to their ease of preparation, versatile reactivity …

Deconstructive synthesis of bridged and fused rings via transition-metal-catalyzed “cut-and-sew” reactions of benzocyclobutenones and cyclobutanones

Y Xue, G Dong - Accounts of Chemical Research, 2022 - ACS Publications
Conspectus Bridged and fused rings are commonly found in biologically important
molecules. Current tactics to construct these ring systems are primarily based on stepwise …

Switching between the [2π+ 2σ] and Hetero‐[4π+ 2σ] Cycloaddition Reactivity of Bicyclobutanes with Lewis Acid Catalysts Enables the Synthesis of Spirocycles and …

JJ Wang, L Tang, Y Xiao, WB Wu, G Wang… - Angewandte …, 2024 - Wiley Online Library
The exploration of the complex chemical diversity of bicyclo [n. 1.1] alkanes and their use as
benzene bioisosteres has garnered significant attention over the past two decades …

Progress in organocatalytic asymmetric (4+ 3) cycloadditions for the enantioselective construction of seven-membered rings

W Tan, JY Zhang, CH Gao, F Shi - Science China Chemistry, 2023 - Springer
Chiral seven-membered ring systems such as seven-membered carbocycles and
heterocycles are widely found in natural products and pharmaceuticals. Therefore, the …

Advances in Palladium‐Catalyzed Decarboxylative Cycloadditions of Cyclic Carbonates, Carbamates and Lactones

Y You, Q Li, YP Zhang, JQ Zhao, ZH Wang… - …, 2022 - Wiley Online Library
Palladium‐catalyzed decarboxylative cycloadditions have emerged as highly effective
methods for constructing structurally diverse carbo‐and heterocycles because of the …

Photoredox‐Enabled Self‐(3+2) Cyclization of Vinyldiazo Reagents: Synthesis of Cyclopentenyl α‐Diazo Compounds

W Li, S Li, C Empel, RM Koenigs… - Angewandte Chemie …, 2023 - Wiley Online Library
Abstract A photocatalytic self‐(3+ 2) cycloaddition of vinyldiazo compounds is described,
which provides cyclopentene derivatives with conservation of one diazo functional group …

Palladium‐Catalyzed Asymmetric [4+3] Cyclization of Trimethylenemethane: Regio‐, Diastereo‐, and Enantioselective Construction of Benzofuro[3,2‐b]azepine …

YZ Liu, Z Wang, Z Huang, X Zheng… - Angewandte Chemie …, 2020 - Wiley Online Library
Abstract The palladium‐catalyzed asymmetric [4+ 3] cyclization of trimethylenemethane
donors with benzofuran‐derived azadienes furnishes chiral benzofuro [3, 2‐b] azepine …

Cooperative Catalysis for the Highly Diastereo‐ and Enantioselective [4+3]‐Cycloannulation of ortho‐Quinone Methides and Carbonyl Ylides

A Suneja, HJ Loui, C Schneider - … Chemie International Edition, 2020 - Wiley Online Library
We describe herein a highly diastereo‐and enantioselective [4+ 3]‐cycloannulation of ortho‐
quinone methides and carbonyl ylides to furnish functionalized oxa‐bridged …

On the question of zwitterionic intermediates in the [3+ 2] cycloaddition reactions: A critical review

R Jasiński, E Dresler - Organics, 2020 - mdpi.com
New discoveries require a fundamental revision of the view on the mechanism of the
32CAreaction (according to the older nomenclature defined as 1, 3-dipolar cycloaddition …

Ring contraction in synthesis of functionalized carbocycles

C Hui, L Craggs, AP Antonchick - Chemical Society Reviews, 2022 - pubs.rsc.org
Carbocycles are a key and widely present structural motif in organic compounds. The
construction of structurally intriguing carbocycles, such as highly-strained fused rings …