Results 121 to 130 of about 117,983 (293)

Recent Advances in Mediator and Proton Relay Usage in Molecular Catalysis

Advanced Science, EarlyView.
The use of electron–proton transfer mediators, redox mediators, and proton relays in synergy with molecular catalysts in energy‐related small‐molecule and organic transformations is discussed, with a focus on recent advances. Linear free‐energy relationship and catalytic Tafel plots provide a systematic foundation for benchmarking these catalytic ...
Yu‐Lin Chi, Wei‐Shuo Chuang, Jing‐Ke Lin, Yu‐Heng Wang   +3 more
wiley   +1 more source

Halorotetin B, A Novel Terpenoid Compound Derived from Marine Ascidian, Suppresses Tumor Growth by Targeting the Cell Cycle Regulator UBE2C

Advanced Science, EarlyView.
Halorotetin B, a novel small‐molecule terpenoid identified from an edible marine ascidian, exhibits strong anti‐tumor activity both in vitro and in vivo through direct targeting UBE2C to induce tumor cell cycle arrest and then lead tumor cell senescence. As a newly discovered UBE2C inhibitor, Halorotetin B can serve as a novel potential cell senescence
Shanhao Han, Jianhui Li, Yuting Zhu, Penghui Liu, Yaoyao Zheng, Muchun He, Bo Dong   +6 more
wiley   +1 more source

Triplet Energy Transfer‐Driven Intermolecular [2+2] Photocycloaddition of Acyclic Imines and Indoles: Facile Access to Azetidine‐Fused Indolines

Advanced Science, EarlyView.
An intermolecular aza‐Paternò‐Büchi reaction of indoles and acyclic imines is enabled by visible‐light‐driven triplet energy transfer, providing azetidine‐fused indolines up to 93% yield for 30 examples and providing a novel protocol to access previously inaccessible scaffolds. ABSTRACT Currently, successful examples of the aza‐[2+2] photocycloaddition
Gang Yang, Zeng Han, Hong Zhang, Xiuling Cui   +3 more
wiley   +1 more source

Production of α-alkenes catalyzed by the fused lipase and P450 fatty acid de-carboxylase [PDF]

, 2017
Yue Sun, Li Ma, Hui Chen, Huifang Xu, Zhaofeng Li, Fengxia Qi, ShengYing LI   +6 more
openalex   +1 more source

Three-Component Ni-Catalyzed Silylacylation of Alkenes

, 2021
Dongshun Ni, M. Kevin Brown
openalex   +2 more sources

1,1-Difunctionalization of Terminal Alkenes to Chiral Allylboronates under Nickel Catalysis [PDF]

, 2022
Martin Oestreich, Hendrik F. T. Klare, Benedikt Wolff   +2 more
openalex   +1 more source

Stereospecific positional alkene isomerization enables bidirectional central-to-axial chirality transfer

Nature Communications
Positional alkene isomerization is a powerful reaction for moving a C=C bond from one position to another. This transformation, as a high atom-economy and easy-to-handle process, has gained increasing prominence in both organic and material chemistry ...
Qi Liu, Jun Gu, Hong-Feng Zhuang, Ying He   +3 more
doaj   +1 more source

Stereoselectivity of supported alkene metathesis catalysts: a goal and a tool to characterize active sites

Beilstein Journal of Organic Chemistry, 2011
Stereoselectivity in alkene metathesis is a challenge and can be used as a tool to study active sites under working conditions. This review describes the stereochemical relevance and problems in alkene metathesis (kinetic vs.
Christophe Copéret
doaj   +1 more source

Skeletal Editing of Alkenes with Nitroarenes via Photoinduced Rearrangement of N─O═C Dipoles Forms Lactams and Amides

Advanced Science, EarlyView.
Skeletal editing of alkenes via the cascade cleavage of C(sp2)═C(sp2) and C(sp3)─C(sp3) bonds, enabling the insertion of the nitrogen atom and thereby the synthesis of lactam and amide derivatives using nitroarenes as nitrogen atom insertion reagents under light irradiation.
Hongyun Qin, Zemin Wang, Cong Shi, Jiashu Chen, Chao Liu, Xiangqian Li, Ruihua Liu, Dayong Shi   +7 more
wiley   +1 more source

Alkenes from β-lithiooxyphosphonium ylides generated by trapping α-lithiated terminal epoxides with triphenylphosphine

Beilstein Journal of Organic Chemistry, 2012
Terminal epoxides undergo lithium 2,2,6,6-tetramethylpiperidide-induced α-lithiation and subsequent interception with Ph3P to provide a new and direct entry to β-lithiooxyphosphonium ylides.
David. M. Hodgson, Rosanne S. D. Persaud
doaj   +1 more source