Results 71 to 80 of about 41,386 (303)

‐hydroxybenzimidoyl chloride with alkynes

, 2019
4‐[18F]Fluoro‐N‐hydroxybenzimidoyl chloride (18FBIC), an 18F‐labelled aromatic nitrile oxide, was developed as building block for Ru‐promoted 1,3 dipolar cycloaddition with alkynes.
Roscales García, Silvia, Kniess, Torsten, Torsten Kniess, Silvia Roscales   +3 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Radical‐Mediated Sulfonylarylation of Unactivated Alkynes via Intramolecular 1,4‐(hetero)aryl Migration

ChemistryEurope
Radical‐mediated difunctionalization of alkynes is an extensively explored strategy for diverse alkyne transformation and utilization. However, the direct difunctionalization of unactivated alkynes remains a significant challenge.
Xu Zhang, Fushan Chen, Chen Zhu
doaj   +1 more source

Electrophilic Additions of Positive Iodine to Alkynes through an Iodonium Mechanism [PDF]

, 1990
Alkynes react with bis(pyridine)iodonium(I) tetrafluoroborate (1) and nucleophiles (CH3COOH, HCOOH, Cl-, pyridine, Br-, I-) to give 1,2-iodofunctionalized alkenes.
Rodríguez, M.A. [0000-0003-0123-9905], Campos, P.J. [0000-0002-8917-0318], Barluenga, J. [0000-0002-6474-7782]   +2 more
core  

Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition

, 2011
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Krim, Jamal, Taourirte, Mohamed, Engels, Joachim W., Moha Taourirte, Jamal Krim, Joachim W. Engels   +5 more
core   +1 more source

Thiolated Polymers in 3D Bioprinting: Control of Gelation

Advanced Materials, EarlyView.
Thiolated polymers are established as programmable bioinks for 3D bioprinting, integrating versatile crosslinking chemistries with redox‐responsive control. This work demonstrates how molecular design and external triggers define gelation kinetics, printability windows, and structural fidelity, enabling stable, high‐resolution constructs and advancing ...
Soheil Haddadzadegan, Flavia Laffleur, Andreas Bernkop‐Schnürch   +2 more
wiley   +1 more source

E‐Selective Radical Difunctionalization of Unactivated Alkynes: Preparation of Functionalized Allyl Alcohols from Aliphatic Alkynes

Advanced Science
Radical difunctionalization of aliphatic alkynes provides direct access to valuable multi‐substituted alkenes, but achieving a high level of chemo‐ and stereo‐control remains a formidable challenge.
Jie Wang, Xinxin Wu, Zhu Cao, Xu Zhang, Xinxin Wang, Jie Li, Chen Zhu   +6 more
doaj   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Expanding the Frontier of Linear Drug Design: Cu‐Catalyzed Csp–Csp3‐Coupling of Electron‐Deficient SF4‐Alkynes with Alkyl Iodides

Advanced Science
Despite the attractive properties of tetrafluorosulfanyl (SF4) compounds in drug discovery, medicinal research on SF4 molecules is hindered by the scarcity of suitable synthetic methodologies.
Srikanth Reddy Narra, Muhamad Zulfaqar Bacho, Masashi Hattori, Norio Shibata   +3 more
doaj   +1 more source

Synthesis of 9-Alkylidene-9H-fluorenes by a Novel, Palladium-Catalyzed Cascade Reaction of Aryl Halides and 1-Aryl-1-alkynes

, 2016
In the presence of a palladium catalyst and NaOAc, aryl iodides react with 1-aryl-1-alkynes to afford 9-alkylidene-9H-fluorenes in good yields. The products from this reaction are highly dependent on the base employed. This process appears to involve (1)
Richard C. Larock (1353099), Qingping Tian (1633456)   +1 more
core   +1 more source