Results 51 to 60 of about 117,983 (293)

Marine furanocembranoids-inspired macrocycles enabled by Pd-catalyzed unactivated C(sp3)-H olefination mediated by donor/donor carbenes

Nature Communications, 2021
Furanocembranoid-like natural products with the alkene-substituted furan scaffold display a range of biological activities, but are difficult to access. Here, the authors report a modular biomimetic strategy to synthesise diverse alkene-substituted furan-
Jiping Hao, Xueying Guo, Shijun He, Zhongliang Xu, Lu Chen, Zhongyu Li, Bichao Song, Jianping Zuo, Zhenyang Lin, Weibo Yang   +9 more
doaj   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Gold Nanoparticle-Catalyzed Environmentally Benign Deoxygenation of Epoxides to Alkenes

Molecules, 2011
We have developed a highly efficient and green catalytic deoxygenation of epoxides to alkenes using gold nanoparticles (NPs) supported on hydrotalcite [HT: Mg6Al2CO3(OH)16] (Au/HT) with alcohols, CO/H2O or H2 as the reducing reagent.
Kiyotomi Kaneda, Koichiro Jitsukawa, Akifumi Noujima, Tomoo Mizugaki, Takato Mitsudome   +4 more
doaj   +1 more source

Electrochemistry-assisted selective butadiene hydrogenation with water

Nature Communications, 2023
Alkene feedstocks are used to produce polymers with a market expected to reach 128.4 million metric tons by 2027. Butadiene is one of the impurities poisoning alkene polymerization catalysts and is usually removed by thermocatalytic selective ...
Yong-Qing Yan, Ya Chen, Zhao Wang, Li-Hua Chen, Hao-Lin Tang, Bao-Lian Su   +5 more
doaj   +1 more source

Elucidating the alkene hydrogenation reaction based on cotton textile reduced graphene oxide under the influence of external electric field: Illustration of new noble method

Heliyon, 2023
The hydrogenation reaction of alkene is one of the most used industrial chemical process for various materials of daily life and energy consumption. This is a heterogeneous reaction and traditionally carried out by metallic catalysis.
Ghozlan Elbashir Amer, Fazira Ilyana Abdul Razak, Suhaila Sapari, Hadi Nur, Siti Aminah Setu   +4 more
doaj   +1 more source

Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals

Advanced Functional Materials, EarlyView.
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee, Sojin Kim, Myeongeun Lee, Kyoungsuk Jin, Jimin Park   +4 more
wiley   +1 more source

Iodoarene-Catalyzed Cyclizations of Unsaturated Amides [PDF]

, 2015
The cyclization of N-alkenylamides catalyzed by iodoarenes under oxidative conditions is presented. Five-, six-, and seven-membered rings with a range of substitutions can be prepared by this route.
Ali Alhalib, Bode H. B., Degnan B. M., Dohi T., Dohi T., Fujita M., Fujita M., Guilbault A.-A., Guilbault A.-A., Hamnett D. J., Kong A., Mizar P., Moon N. G., Murai T., Ngatimin M., Parra A., Richardson R. D., Rodríguez A., Rodríguez A., Shimogaki M., Somaia Kamouka, Suzuki S., Uyanik M., Uyanik M., Wesley J. Moran, Wu H., Yan J., Zhdankin V. V., Zheng Z. S., Zhong W., Zhou Z.-S.   +30 more
core   +1 more source

Organophosphates as Versatile Substrates in Organic Synthesis

Molecules
This review summarizes the applications of organophosphates in organic synthesis. After a brief introduction, it discusses cross-coupling reactions, including both transition-metal-catalyzed and transition-metal-free substitution reactions. Subsequently,
Petr Oeser, Tomáš Tobrman
doaj   +1 more source

Pauson–Khand reaction of fluorinated compounds

Beilstein Journal of Organic Chemistry, 2020
The Pauson–Khand reaction (PKR) is one of the key methods for the construction of cyclopentenone derivatives, which can in turn undergo diverse chemical transformations to yield more complex biologically active molecules.
Jorge Escorihuela, Daniel M. Sedgwick, Alberto Llobat, Mercedes Medio-Simón, Pablo Barrio, Santos Fustero   +5 more
doaj   +1 more source

Palladium-catalyzed regio- and enantioselective migratory allylic C(sp3)-H functionalization

Nature Communications, 2021
Alkene isomerizations and asymmetric C–H functionalizations have been independently studied, but their combination in one protocol is uncommon. Here the authors show a palladium-catalyzed method to iteratively “walk” a terminal alkene along a carbon ...
Ye-Wei Chen, Yang Liu, Han-Yu Lu, Guo-Qiang Lin, Zhi-Tao He   +4 more
doaj   +1 more source