Recent advances in copper-catalyzed decarboxylative reactions of propargylic cyclic carbonates/carbamates

Y You, YP Zhang, ZH Wang, JQ Zhao, JQ Yin… - Chemical …, 2023 - pubs.rsc.org
Copper-catalyzed decarboxylative reactions of propargylic cyclic carbonates/carbamates
enable the efficient construction of widely available skeletons such as allenes, ethynyl …

An update of transition metal-catalyzed decarboxylative transformations of cyclic carbonates and carbamates

L Zuo, T Liu, X Chang, W Guo - Molecules, 2019 - mdpi.com
Functionalized cyclic organic carbonates and carbamates are frequently used in a number
of transition metal-catalyzed decarboxylative reactions for the construction of interesting …

N‐heterocyclic carbene/copper cooperative catalysis for the asymmetric synthesis of spirooxindoles

ZJ Zhang, L Zhang, RL Geng, J Song… - Angewandte …, 2019 - Wiley Online Library
Abstract Highly enantioselective [3+ 3] and [3+ 4] annulations of isatin‐derived enals with
ethynylethylene carbonates and ethynyl benzoxazinanones are enabled by NHC/cooper …

Combining nickel and squaramide catalysis for the stereodivergent α-propargylation of oxindoles

Q Hu, Z He, L Peng, C Guo - Nature Synthesis, 2022 - nature.com
Stereoisomers of drugs can have different therapeutic outcomes or side effects, and
regulatory agencies require the bioactivity of all stereoisomers of pharmaceutical candidates …

Copper-catalyzed diastereo-and enantioselective decarboxylative [3+ 2] cyclization of alkyne-substituted cyclic carbamates with azlactones: access to γ-butyrolactams …

T Wang, Y You, ZH Wang, JQ Zhao, YP Zhang… - Organic …, 2023 - ACS Publications
A copper-catalyzed diastereo-and enantioselective decarboxylative [3+ 2] cyclization
reaction of alkyne-substituted cyclic carbamates with azlactones has been established. A …

Recent advances in azlactone transformations

IFS Marra, PP de Castro… - European Journal of …, 2019 - Wiley Online Library
Azlactones, also known as oxazolones, are versatile building blocks in organic synthesis
due to the presence of multiple pro‐nucleophilic and electrophilic reactive sites. Recently …

Deconjugated butenolide: a versatile building block for asymmetric catalysis

AR Choudhury, S Mukherjee - Chemical Society Reviews, 2020 - pubs.rsc.org
The wide abundance of γ-lactones in natural products and bioactive targets calls for suitable
building blocks for their enantioselective synthesis. β, γ-Unsaturated γ-butenolides …

Cu-Catalyzed Intermolecular Asymmetric Propargylic Substitution of N-Hydroxyphthalimide Esters with Propargyl Carbonates

C Gui, Y Peng, Y Zhou, Y Zheng, H Wang, Q Yan… - ACS …, 2023 - ACS Publications
Transition-metal-catalyzed asymmetric allylic alkylation is one of the most powerful and well-
known strategies for the construction of C–C bonds; nevertheless, propargylation is elusive …

[HTML][HTML] Recent advances in copper-catalyzed asymmetric propargylic substitution

MD Li, XR Wang, TY Lin - Tetrahedron Chem, 2024 - Elsevier
Copper-catalyzed enantioselective propargylic substitution has become an increasingly
reliable strategy to construct stereogenic centers over the past two decades. Currently …

Organocatalytic enantioselective formal (4+ 2)-cycloadditions of phosphine-containing dipoles with isocyanates

X Chen, T Wang, Z Lu, P Li - Organic Letters, 2022 - ACS Publications
Phosphine-catalyzed enantioselective formal (4+ 2)-cycloadditions of 2-(4 H-benzo [d][1, 3]
oxazin-4-yl) acrylates with isocyanates have been developed for the first time. The initial …