Results 91 to 100 of about 13,653 (246)

Aryl radical-mediated N-heterocyclic carbene catalysis

Nature Communications, 2021
Use of aryl halides as coupling precursors typically occurs through transition metal catalysis and/or photoredox chemistry, which requires some combination of light, metals, and oxidants or reductants.
Yuki Matsuki, Nagisa Ohnishi, Yuki Kakeno, Shunsuke Takemoto, Takuya Ishii, Kazunori Nagao, Hirohisa Ohmiya   +6 more
doaj   +1 more source

Photoinduced, Copper-Catalyzed Alkylation of Amines: A Mechanistic Study of the Cross-Coupling of Carbazole with Alkyl Bromides [PDF]

, 2017
We have recently reported that a variety of couplings of nitrogen, sulfur, oxygen, and carbon nucleophiles with organic halides can be achieved under mild conditions (−40 to 30 °C) through the use of light and a copper catalyst.
Ahn, Jun Myun, Fu, Gregory C., Hannoun, Kareem I., Peters, Jonas C., Ratani, Tanvi S.   +4 more
core   +4 more sources

A bifunctional photoaminocatalyst for the alkylation of aldehydes: Design, analysis, and mechanistic studies [PDF]

, 2018
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Catalysis, copyright ©2018 American Chemical Society after peer review and technical editing by the publisher.
Alemán, José, Cabrera, Silvia, Casado-Sánchez, Antonio, De La Peña O'Shea, Víctor A., Liras, Marta, Pérez-Ruiz, Raúl, Rigotti, Thomas   +6 more
core   +5 more sources

Double-shelled hollow rods assembled from nitrogen/sulfur-codoped carbon coated indium oxide nanoparticles as excellent photocatalysts

Nature Communications, 2019
While photoredox catalysis presents exciting avenues for molecular transformations, balancing optimal photochemical and materials properties can be challenging. Here, the authors prepare carbon-coated In2O3 nanoparticles as recoverable photocatalysts for
Liming Sun, Rong Li, Wenwen Zhan, Yusheng Yuan, Xiaojun Wang, Xiguang Han, Yanli Zhao   +6 more
doaj   +1 more source

A practical and catalyst-free trifluoroethylation reaction of amines using trifluoroacetic acid [PDF]

, 2017
Amines are a fundamentally important class of biologically active compounds and the ability to manipulate their physicochemical properties through the introduction of fluorine is of paramount importance in medicinal chemistry.
A van Oeveren, AC Sather, AT Brusoe, B Morandi, BL Tóth, C Hollingworth, D O’Hagan, DA Nagib, EP Gillis, F Nahra, F O’Hara, F Xu, H Liu, H Luo, H Mimura, HY Kim, I Sorribes, IG Molnár, J Yang, JC Wong, JL Adams, JM Brown, JW Beatty, K Müller, KG Andrews, LM Kreis, M Morgenthaler, MC Fu, MG Campbell, MG Mormino, MK Nielsen, NS Keddie, QA Huchet, R Vorberg, S Swallow, S Ventre, SA Künzi, SI Arlow, SM Banik, T Fujimoto, T Furuya, T Umemoto, TJ Williams, W Song, Y Fujiwara, Y He, Y Zhou   +46 more
core   +1 more source

Organopolymer with dual chromophores and fast charge-transfer properties for sustainable photocatalysis

Nature Communications, 2019
While photoredox catalysis offers a new dimension to chemical synthesis, there are few heterogeneous organocatalysts for metal-free transformations.
Justin D. Smith, Abdelqader M. Jamhawi, Jacek B. Jasinski, Fabrice Gallou, Jin Ge, Rigoberto Advincula, Jinjun Liu, Sachin Handa   +7 more
doaj   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Enantioselective benzylic C–H arylation via photoredox and nickel dual catalysis

Nature Communications, 2019
Chiral 1,1-diaryl alkanes are important targets in pharmaceutical industry. Here, the authors report report a redox-neutral enantioselective benzylic C−H bond arylation via photoredox/nickel dual catalysis accessing chiral 1,1-diarylalkane compounds ...
Xiaokai Cheng, Huangzhe Lu, Zhan Lu
doaj   +1 more source

Interfacial Charge Transfer Regulates Photoredox Catalysis. [PDF]

ACS Cent Sci
Photoredox catalytic processes offer the potential for precise chemical reactions using light and materials. The central determinant is identified as interfacial charge transfer, which simultaneously engenders distinctive behavior in the overall reaction.
Ye C, Zhang DS, Chen B, Tung CH, Wu LZ.
europepmc   +4 more sources

Light-Induced Activation of a Molybdenum Oxotransferase Model within a Ru(II)-Mo(VI) Dyad [PDF]

, 2016
Nature uses molybdenum-containing enzymes to catalyze oxygen atom transfer (OAT) from water to organic substrates. In these enzymes, the two electrons that are released during the reaction are rapidly removed, one at a time, by spatially separated ...
Coulson, Ben A, Ducrot, Aurélien B, Duhme-Klair, Anne-Kathrin, Perutz, Robin N   +3 more
core   +2 more sources