Results 81 to 90 of about 334,904 (302)

Palladium-NHC Catalyzed Enantioselective Synthesis of Fused Indolines via Inert C(sp3)-H Activation

CHIMIA, 2012
New sterically hindered chiral N-heterocyclic carbene (NHC) ligands were used in palladium catalysis to bring about a highly enantioselective C(sp3)-H activation on the methylene site of a cycloalkane moiety. The intramolecular coupling reaction
Masafumi Nakanishi, Dmitry Katayev, Céline Besnard, E. Peter Kündig   +3 more
doaj   +1 more source

Palladium-Catalyzed Hydrocarbonylative C–N Coupling of Alkenes with Amides

, 2018
An efficient palladium-catalyzed hydrocarbonylative C–N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides.
Bao Gao (1508293), Xibing Zhou (2056147), Guoying Zhang (295385), Hanmin Huang (1508290)   +3 more
core   +1 more source

How is Nanoarchitectonics Shaping Extracellular Vesicle Research?

Advanced Healthcare Materials, EarlyView.
The convergence of nanoarchitectonics and extracellular vesicle biology is reshaping next‐generation nanomedicine by enabling rationally designed nanostructures for enhanced EVs detection, engineering, and therapy. ABSTRACT Extracellular vesicles (EVs) have gained recognition as crucial mediators of cell‐to‐cell communication, holding immense potential
Madushani Dahanayake, Md Shahriar A. Hossain, Chia‐Hung Liu, Carlos Salomon, Yusuke Yamauchi, Mostafa Kamal Masud   +5 more
wiley   +1 more source

On the Use of Iron in Organic Chemistry

Molecules, 2020
Transition metal catalysis in modern organic synthesis has largely focused on noble transition metals like palladium, platinum and ruthenium. The toxicity and low abundance of these metals, however, has led to a rising focus on the development of the ...
Arnar Guðmundsson, Jan-E. Bäckvall
doaj   +1 more source

Reações de hidrogenação e isomerização de olefinas utilizando nanopartículas de paládio estabilizadas por um surfactante dipolar iônico baseado no anel imidazol [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-graduação em Química, Florianópolis, 2014O presente trabalho descreve a preparação de dois catalisadores baseados em nanopartículas
Leopoldino, Elder Correa
core  

Lignin Mimicking Protein Methylation Augments the Efficacy of FOLFOX Chemotherapy by Anchoring Thymidylate Synthase

Advanced Materials, EarlyView.
Lignin‐mimicking protein methylation can enhance the efficacy and mitigate the toxicity of the classic FOLFOX chemotherapy regimen. ABSTRACT FOLFOX has served as the standard chemotherapy regimen for advanced stages, specifically in the treatment of pancreatic, colorectal, and bladder cancers.
Shiyao Song, Yan‐Lai Tang, Xiaoting Liu, Jiayi Zheng, Chong Wu, Tang Li, Junhong Ye, Dianmin Xia, Yong Mei, Jingxuan Ma, Libin Huang, Xuequn Luo, Liheng Chen, Yanlin Qin, Weiling He   +14 more
wiley   +1 more source

Palladium-Catalyzed Suzuki-Type Self-Coupling of Arylboronic Acids. A Mechanistic Study

, 2016
Symmetrical biaryls are formed from arylboronic acids both under tetrakis(triphenylphosphine)palladium and under palladium(II) acetate catalysis.
Montserrat Pérez (3036021), Marcial Moreno-Mañas (2451550), Roser Pleixats (1923310)   +2 more
core   +1 more source

Palladium-Catalyzed Alkoxycarbonylation of Arylsulfoniums [PDF]

, 2019
Alkoxycarbonylation of arylsulfoniums has been developed with the aid of a catalytic amount of a palladium-Xantphos complex under an atmospheric pressure of CO gas.
Hideki Yorimitsu (1393411), Keisuke Nogi, Hiroko Minami, Yorimitsu, Hideki, Keisuke Nogi (1478959), Minami, Hiroko, Hideki Yorimitsu, Hiroko Minami (4685944), Nogi, Keisuke   +8 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

SELECTIVE CYCLIZATION OF 2-PROPARGYLTHIO-6-METHYL-PYRIMIDIN- 4(1 H)-ONE TO THIAZOLO [3,2-a] PYRIMIDIN 7-ONE [PDF]

Journal of Sciences, Islamic Republic of Iran, 1998
Selective transformation of 2-propargylthio-6-methyl-pyrimidin-4(1H)On e (2) to 3,5-dimethyl-7H-thiazolo [3,2-a] pyrimidin-7-one (3) is performed under the conditionof base catalysis .
doaj