Results 51 to 60 of about 26,006 (279)

Controlling the Hydrophilicity of the Electrochemical Interface to Modulate the Oxygen-Atom Transfer in Electrocatalytic Epoxidation Reactions

, 2022
The electrocatalytic epoxidation of alkenes at heterogeneous catalysts using water as the sole oxygen source is a promising safe route toward the sustainable synthesis of epoxides, which are essential building blocks in organic chemistry.
Jérémy, De Freitas, Mathieu, Salanne, Dorian, Crevel, Ozlem, Sel, Alexis, Grimaud, Alessandra, Serva, Nikolaos, Kostopoulos, Florian, Dorchies, Marc, Robert   +8 more
core   +1 more source

Research Progress in Epoxidation of Light Small-Molecule Olefins

Molecules
Light olefins, as important bulk raw materials in the petrochemical industry, play an irreplaceable role in the development of the manufacturing industry and the economy.
Guanghui Zhao, Tianfu Yang, Jincheng Liu, Xianming Xu, Yulong Wang, Yongjun Zhang, Meng Gao, Chao Xiong, Hongbing Ji   +8 more
doaj   +1 more source

Glutaraldehyde-crosslinked Rhizopus oryzae whole cells show improved catalytic performance in alkene epoxidation

Microbial Cell Factories, 2023
Background Existing methods for alkene epoxidation are based on lipase-catalysed perhydrolysis. However, the inactivation of the expensive lipase enzyme is problematic for enzymatic epoxidation at large scales due to the use of hydrogen peroxide and ...
Lili Xu, Yimin Qin, Yufeng Song, Aixing Tang, Youyan Liu   +4 more
doaj   +1 more source

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

Heterogeneous enantioselective epoxidation catalyzed by Mn(salen) complexes grafted onto mesoporous materials by phenoxy group

, 2005
Three chiral Mn(salen) complexes were immobilized into different mesoporous material via phenoxy group by a simplified method and they show high activity and enantioselectivity for asymmetric epoxidation of various substituted unfunctional olefins.
Zhang, HD, Xiao, JL, Li, C, 李灿, Xiang, S   +4 more
core   +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

Characterization of Bio‐Based Phenolic Plasticizer Extracted From Rambutan Fruit Shell Waste: A Sustainable Alternative to Synthetic Plasticizers for Green Polymer Applications

Journal of the American Oil Chemists' Society, EarlyView.
Comprehensive Characterization of Bio‐Based Phenolic Plasticizer Extracted From Rambutan Fruit Shell Waste. ABSTRACT The development of eco‐friendly plasticizer is driving the interest of many scientists due to its environmentally benign nature.
Divya Divakaran, Indran Suyambulingam, Sunesh Narayanaperumal, Nadir Ayrilmis, Murugesan Palaniappan, Sivasubramanian Palanisamy, P. Senthamaraikannan, Siva Avudaiappan   +7 more
wiley   +1 more source

Stable copper nanoparticle photocatalysts for selective epoxidation of alkenes with visible light

, 2017
Selective epoxidation of various alkenes with molecular oxygen (O2) under mild conditions is a longstanding challenge in achieving syntheses of epoxides. Cu-based catalysts have been found to be catalytically active for selective epoxidations.
Liu, Zhe, Steven Bottle, Yiming Huang, Guoping Gao, Gang Xiao, Zhe Liu, Aijun Du, Sarina Sarina, Gao, Guoping, Xiao, Gang, Huang, Yiming, Huaiyong Zhu, Sarina, Sarina, Bottle, Steven, Zhu, Huaiyong, Du, Aijun   +15 more
core   +1 more source

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

Journal of Applied Polymer Science, EarlyView.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva, Amanda L. Ferreira, Felipe F. C. Tavares, Chana M. da Silva, Cesar L. Petzhold, Nilo S. M. Cardozo   +5 more
wiley   +1 more source