Results 261 to 270 of about 450,139 (372)

Bidentate NHC‐Containing Ligands for Copper Catalysed Synthesis of Functionalised Diaryl Ethers

Advanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.
Abstract Diaryl and heteroaryl ethers are important and common motifs in drug discovery and agrochemicals. Here we present a catalytic system for the copper catalysed arylation of phenols with aryl halides. Bidentate N‐heterocyclic carbene ligands provide a well‐defined catalytic system that enable low loading of copper in effective coupling reactions (
Ethan M. Richards, Luis Casarrubios, Jarryl M. D'Oyley, Henry S. Rzepa, Andrew J. P. White, Kristin Goldberg, Frederick W. Goldberg, James A. Bull, Silvia Díez‐González   +8 more
wiley   +1 more source

Non-Fragile Estimation for Nonlinear Delayed Complex Networks with Random Couplings Using Binary Encoding Schemes. [PDF]

Sensors (Basel)
Hou N, Li W, Song Y, Chang M, Bu X.
europepmc   +1 more source

Today's Petroleum Engines

Journal of the Fuel Society of Japan, 1952
openaire   +2 more sources

Direct Access to α,β‐Unsaturated γ‐Lactams via Palladium‐Catalysed Carbonylation of Propargylic Ureas.

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract Additive carbonylations typically necessitate strong nucleophiles, such as alcohols or amines. In this study, we carbonylated a poorly nucleophilic urea, under oxidant‐free conditions. Our straightforward carbonylative strategy enables access to versatile α,β‐unsaturated γ‐lactams featuring an aminocarbonyl fragment, utilizing readily ...
Debora Schiroli, Aleksandr Voronov, Francesco Pancrazzi, Nunzio Iraci, Salvatore Vincenzo Giofrè, Beatrice Macchi, Valeria Stefanizzi, Raffaella Mancuso, Bartolo Gabriele, Paolo Pio Mazzeo, Luca Capaldo, Nicola Della Ca'   +11 more
wiley   +1 more source

Establishment and solution of a three-zone radial composite well test model for mixed gas drive production wells. [PDF]

Sci Rep
Zhao X, Cao Y.
europepmc   +1 more source

Mg(SPh)2 as a Catalyst for Efficient Photocatalytic Alkylation Reactions of Active Methylene Compounds with Nonactivated Alkenes

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract Mg(SPh)2 has been found to be a highly active catalyst in photocatalytic alkylation reactions of active methylene compounds with nonactivated alkenes. The desired reactions proceeded smoothly to afford the corresponding alkylated products in high yields with low catalyst loadings (0.2–0.3 mol%). This protocol is applicable to a continuous‐flow
Yasuhiro Yamashita, Tomoya Hisada, Yuki Sato, Shū Kobayashi   +3 more
wiley   +1 more source

An integrated 3D model of water shutoff considering the gelation kinetics of nanosilica gel. [PDF]

Sci Rep
Alabdrabalnabi M, Aboluhom H, Aljawad MS, Al-Ramadan M, Almohsin A.   +4 more
europepmc   +1 more source

Photoinduced Catalytic Alkylation of Active Methine Compounds with Nonactivated Alkenes Using Yttrium Triflate as a Lewis Acid Catalyst

Advanced Synthesis &Catalysis, Volume 367, Issue 8, April 15, 2025.
Abstract Photoinduced catalytic alkylation reactions of active methine compounds with nonactivated alkenes have been developed using an organophotocatalyst, a metal Lewis acid, an arylthiol, and an amine base catalyst system. The alkylation reactions proceeded smoothly under ambient conditions with blue light irradiation, affording the desired products
Yasuhiro Yamashita, Rentaro Enokijima, Yoshihiro Ogasawara, Tomoya Hisada, Shū Kobayashi   +4 more
wiley   +1 more source

Influence of Oil Components on the Wax Deposition of Heavy Oil. [PDF]

ACS Omega
Huang H, Wang D, Liu H, Duan J, Huang Q, Long X, Meng J, Qi Z, Gong J.   +8 more
europepmc   +1 more source

Metal‐Free, Selective Ortho‐Deuteration of N‐Heterocyclic Oxides

Advanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.
Abstract Replacing hydrogen with deuterium raises the activation energy for C−D bond cleavage. This approach has gained attention in drug design, especially to protect the ortho‐position of pyridines, which are susceptible to enzymatic oxidation.
Arianna Montoli, Alessandro Dimasi, Andrea Citarella, Paolo Ronchi, Daniele Passarella, Valerio Fasano   +5 more
wiley   +1 more source