Recent progress on donor and donor–donor carbenes

D Zhu, L Chen, H Fan, Q Yao, S Zhu - Chemical Society Reviews, 2020 - pubs.rsc.org
Donor and donor–donor carbenes are two important kinds of carbenes, which have
experienced tremendous growth in the past two decades. This review provides a …

Advances in [4+ 3]‐Annulation/Cycloaddition Reactions Leading to Homo‐and Heterocycles with Seven‐Membered Rings

K Selvaraj, S Chauhan, K Sandeep… - Chemistry–An Asian …, 2020 - Wiley Online Library
In this review, we summarize advances in [4+ 3] and a few other annulation/cycloaddition
reactions for the construction of seven membered rings, with an emphasis on the literature …

Asymmetric Three-Component Reaction of Enynal with Alcohol and Imine as An Expeditious Track to Afford Chiral α-Furyl-β-amino Carboxylate Derivatives

K Hong, J Shu, S Dong, Z Zhang, Y He, M Liu… - ACS …, 2022 - ACS Publications
Herein, we report an achiral dirhodium complex and chiral phosphoric acid cooperatively
catalyzed asymmetric three-component reaction of enynal with alcohol and imine, affording …

Zinc‐Catalyzed Alkyne Oxidation/C H Functionalization: Highly Site‐Selective Synthesis of Versatile Isoquinolones and β‐Carbolines

L Li, B Zhou, YH Wang, C Shu, YF Pan… - Angewandte Chemie …, 2015 - Wiley Online Library
An efficient zinc (II)‐catalyzed alkyne oxidation/C H functionalization sequence was
developed, thus leading to highly site‐selective synthesis of a variety of isoquinolones and β …

Daily recovery experiences: the role of volunteer work during leisure time.

EJ Mojza, C Lorenz, S Sonnentag… - Journal of Occupational …, 2010 - psycnet.apa.org
This study focused on the role of volunteer work for daily recovery from work. In a 1-week
diary study with 166 employees, we assessed the amount of time spent on volunteer work …

Zinc‐Catalyzed Asymmetric Formal [4+3] Annulation of Isoxazoles with Enynol Ethers by 6π Electrocyclization: Stereoselective Access to 2H‐Azepines

XQ Zhu, ZS Wang, BS Hou, HW Zhang… - Angewandte Chemie …, 2020 - Wiley Online Library
Abstract 6π electrocyclization has attracted interest in organic synthesis because of its high
stereospecificity and atom economy in the construction of versatile 5–7‐membered cycles …

Recent advances in transition-metal-catalyzed (4+ 3)-cycloadditions

H Lam, M Lautens - Synthesis, 2020 - thieme-connect.com
A (4+ 3)-cycloaddition combines a four-atom synthon and three-atom synthon to form seven-
membered rings. In the past decade, many improvements have been made to this class of …

Palladium-catalyzed carbene/alkyne metathesis with enynones as carbene precursors: synthesis of fused polyheterocycles

Y Zheng, M Bao, R Yao, L Qiu, X Xu - Chemical Communications, 2018 - pubs.rsc.org
An unprecedented palladium-catalyzed novel carbene/alkyne metathesis cascade reaction
of alkyne-tethered enynones is described. This reaction affords fused polyheterocycles in …

Strategies for Synthesis of Imidazo[1,2‐a]pyridine Derivatives: Carbene Transformations or C−H Functionalizations

Y Yu, Z Su, H Cao - The Chemical Record, 2019 - Wiley Online Library
Abstract The imidazo [1, 2‐a] pyridines are an important target in organic synthetic chemistry
and have attracted critical attention of chemists mainly due to the discovery of the interesting …

Palladium-catalyzed cascade reactions of enynones and isocyanides: access towards functionalized ketenimine and its application

J Huang, F Li, L Cui, S Su, X Jia, J Li - Chemical Communications, 2020 - pubs.rsc.org
Palladium-catalyzed cascade reactions of enynones and isocyanides have been disclosed.
This strategy allows for the synthesis of structurally unusual furan-incorporated ketenimines …