Results 21 to 30 of about 367,010 (217)

The Application of Biomass-Based Catalytic Materials in the Synthesis of Cyclic Carbonates from CO₂ and Epoxides

Molecules, 2020
The synthesis of cyclic carbonates from carbon dioxide (CO2) and epoxides is a 100% atom economical reaction and an attractive pathway for CO2 utilisation.
Li Guo, Ran Zhang, Yuge Xiong, Dandan Chang, Haoran Zhao, Wenbo Zhang, Wei Zheng, Jialing Chen, Xiaoqin Wu   +8 more
doaj   +1 more source

A Broadly Applicable Alkyl-Alkyl Suzuki-Miyaura Cross-Coupling Reaction Catalyzed by an Iron-Based Complex

, 2021
An iron-based catalyst for the Suzuki-Miyaura reaction between two sp3-hybridized substrates has been developed for a broad range of unactivated alkyl halides and alkyl boranes.
Jeffery, Byers, Chet, Tyrol
core   +1 more source

Low-Valent-Tungsten-Catalyzed Aerobic Oxidative Cross-Dehydrogenative Coupling Reaction

Molecules, 2023
A straightforward and convenient protocol was established for the synthesis of thiophosphates and 3-sulfenylated indoles via low-valent-tungsten-catalyzed aerobic oxidative cross-dehydrogenative coupling reactions.
Chunsheng Li, Yaoyang Chen, Feihua Ye, Junhua Chen, Jia Zheng   +4 more
doaj   +1 more source

Practical Synthesis of Hydroxychromenes and Evaluation of Their Biological Activity

Molecules, 2011
A simple and efficient seven steps synthesis of brodifacoum and difethialone from phenylacetyl chloride is described. The key synthetic strategies involve Friedel-Crafts acylation, intramolecular ring cyclization and condensation reaction in the presence
Jae-Chul Jung, Seikwan Oh
doaj   +1 more source

m-Carborane as a Novel Core for Periphery-Decorated Macromolecules

Molecules, 2020
Closo m-C2B10H12 can perform as a novel core of globular periphery-decorated macromolecules. To do this, a new class of di and tetrabranched m-carborane derivatives has been synthesized by a judicious choice of the synthetic procedure, starting with 9,10-
Ines Bennour, Francesc Teixidor, Zsolt Kelemen, Clara Viñas   +3 more
doaj   +1 more source

Cobalt-immobilized carbon-based nano-catalyst for CN cross coupling reaction

Results in Chemistry, 2022
CN cross coupling reaction is very important in synthesis of pharmaceuticals, natural products, agrochemicals, fine chemicals and functional materials. Traditionally, palladium or copper metals are used for CN coupling reaction.
Shubham R. Bankar, Swapnali P. Kirdant, Vrushali H. Jadhav   +2 more
doaj   +1 more source

Catalyst controlled remote CH activation of 8-aminoquinolines with NFSI for CN versus CF coupling

Catalysis Communications, 2021
A catalyst-controlled selective functionalization of 8-aminoquinolines with N-fluorobenzenesulfonimide (NFSI) has been developed. The use of GTP-Cu catalysts leads to CN coupling products and whereas the CF coupling reaction is dominant for GPT-Ni ...
Kai Zheng, Enmu Zhou, Letian Zhang, Lixi Zhang, Wenbo Yu, Hao Xu, Chao Shen   +6 more
doaj   +1 more source

Synthesis of 2-[(3,4,5-Triphenyl)phenyl]acetic Acid and Derivatives

Molbank
New phenylacetic acid derivatives with potentially valuable biological activities and the ability to act as starting materials for various functionalizations have been prepared by a multi-step synthesis.
Monika Mazik, Pierre Seidel
doaj   +1 more source

Effect of Coriolis coupling in chemical reaction dynamics

, 2008
It is essential to evaluate the role of Coriolis coupling effect in molecular reaction dynamics. Here we consider Coriolis coupling effect in quantum reactive scattering calculations in the context of both adiabaticity and nonadiabaticity, with ...
韩克利, Han, Ke-Li, Chu, Tian-Shu
core   +1 more source

Synthetic Approaches and Biological Activities of 4-Hydroxycoumarin Derivatives

Molecules, 2009
The main purpose of this review is to summarize recent chemical syntheses and structural modifications of 4-hydroxycoumarin and its derivatives, of interest due to their characteristic conjugated molecular architecture and biological activities.
Oee-Sook Park, Jae-Chul Jung
doaj   +1 more source