Results 61 to 70 of about 48,446 (261)

Selective and metal-free epoxidation of terminal alkenes by heterogeneous polydioxirane in mild conditions [PDF]

Royal Society Open Science, 2018
Polydioxirane (PDOX) was prepared by the treatment of polysalicylaldehyde with Oxone and was found as a selective, highly efficient and heterogeneous reagent for epoxidation of alkenes which can be successfully isolated.
M. Kazemnejadi, A. Shakeri, M. Nikookar, R. Shademani, M. Mohammadi   +4 more
doaj   +1 more source

Simultaneous Photoactivation of Copper and Ti‐Doped CeO2−x Enables Optimal Acceleration of the RWGS Reaction

Carbon Energy, EarlyView.
A combination of visible light and thermal energy accelerates the CO formation rate up to 57 times compared to dark conditions using a 3Cu/CeTiO2−x catalyst. Kinetic analysis, as well as steady state and transient spectroscopy, was applied under photocatalytic conditions to analyze and disentangle the reaction channels under dark and illuminated ...
Miha Okorn, Kristijan Lorber, Matjaž Mazaj, Nataša Novak Tušar, Petar Djinović   +4 more
wiley   +1 more source

P450BM3-Catalyzed Oxidations Employing Dual Functional Small Molecules [PDF]

, 2019
A set of dual functional small molecules (DFSMs) containing different amino acids has been synthesized and employed together with three different variants of the cytochrome P450 monooxygenase P450BM3 from Bacillus megaterium in H2O2-dependent oxidation
Girhard, Marco, Gonzalo Calvo, Gonzalo de, Hollmann, Frank, Tieves, Florian, Urlacher, Vlada B., Willot, Sébastien Jean-Paul   +5 more
core   +1 more source

A General Strategy for the Synthesis of Jerangolids Enabled by π‐allyl Stille Coupling

Chemistry – A European Journal, EarlyView.
A general strategy for the synthesis of jerangolids is established, featuring a late‐stage π‐allyl Stille coupling of two advanced, highly customizable building blocks to form the skipped diene core. The approach provides access to all naturally occurring jerangolids, including jerangolid H, whose configuration is confirmed by NMR analysis.
Janick Schug, Bernd Morgenstern, Johann Jauch   +2 more
wiley   +1 more source

The quantum chemical study of the mechanism of the epoxidation reaction of limonene and geraniol with peracetic and perbenzoic acids

Журнал органічної та фармацевтичної хімії, 2019
Aim. To compare the mechanism of the epoxidation reaction of terpenes Geraniol and Limonene with peracetic acid and perbenzoic acid based on the quantum chemical study. Materials and methods.
O. M. Agafonov, S. I. Okovytyy, M. Ye. Blazheyevskiy   +2 more
doaj   +1 more source

Surface decorated magnetite nanoparticles with birhodanine and MoO2Cl2(dmf)2 as a new magnetic catalyst for epoxidation of olefins [PDF]

Journal of Particle Science and Technology, 2019
In this work, the synthesis and characterization of a new magnetically supported Mo6+ complex have been reported as a catalyst for epoxidation of olefins. For this purpose, a new silylating compound containing a birhodanine moiety, i.e.
Arman Rahmaninia, Yagoub Mansoori, Farough Nasiri, Abolfazl Bezaatpour, Behnam Babaei   +4 more
doaj   +1 more source

Why is a noble metal catalytically active? The role of the O-Ag interaction in the function of silver as an oxidation catalyst [PDF]

, 2003
Extensive density-functional theory calculations, and taking into account temperature and pressure, affords a comprehensive picture of the behavior and interaction of oxygen and Ag(111), and provides valuable insight into the function of silver as an ...
A. A. Balandin, A. I. Boronin, Catherine Stampfl, D. Herein, Matthias Scheffler, R. A. van Santen, R. A. van Santen, Wei-Xue Li   +7 more
core   +2 more sources

Biocatalytic Conversion of Epoxides [PDF]

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Erik J, de Vries, Dick B, Janssen
openaire   +2 more sources

Harnessing Random Polymers as Chemoselective Catalysts With Structural Adaptability: Epoxidation of Olefinic Quaternary Ammonium Salts via Charge Recognition

Chemistry – A European Journal, EarlyView.
The development of chemoselective catalysts that operate across structurally diverse substrates remains a long‐standing challenge. Here, we demonstrate that a random heteropolymer bearing carboxylic acid and urea residues functions as a general epoxidation catalyst for olefinic quaternary ammonium salts.
Yusei Fujii, Kiyosei Takasu, Yusuke Kuroda   +2 more
wiley   +1 more source

Nanocluster polyoxomolybdate, (NH4)12[Mo36(NO)4O108(H2O)16] as an efficient catalyst in olefins epoxidation [PDF]

شیمی کاربردی روز, 2016
In this project, epoxidation of olefins using nanocluster polyoxomolybdate, (NH4)12[Mo36(NO)4O108(H2O)16] in presence of  tert- butyl hydroperoxide (TBHP) were studied.
مجتبی امینی
doaj   +1 more source