Results 61 to 70 of about 46,587 (96)

Switchable asymmetric bio-epoxidation of alpha,beta-unsaturated ketones

open access: yes, 2016
Efficient asymmetric bio-epoxidation of electron-deficient alpha,beta-unsaturated ketones was realized via a tandem reduction-epoxidation-dehydrogenation cascade, which proceeds in a switchable manner to afford either chiral epoxy ketones or allylic ...
Liu, YC   +2 more
core   +1 more source

Multifunctional 3D-Printable Photocurable Elastomer with Self-Healing Capability Derived from Waste Cooking Oil

open access: yesMolecules
This study presents a sustainable approach to transform waste cooking oil (WCO) into a multifunctional 3D-printable photocurable elastomer with integrated self-healing capabilities. A linear monomer, WCO-based methacrylate fatty acid ethyl ester (WMFAEE),
Pengyu Wang   +7 more
doaj   +1 more source

Intensification of Ester Production in a Continuous Reactor [PDF]

open access: yes, 2009
Numerous continuous intensified reactors are now accessible on the market that offer enhanced thermal performances in a continuous reactor. Such reactors are then particularly suited to fast and highly exothermic reactions.
Elgue, Sébastien   +6 more
core  

A Simple and Efficient Esterification Method

open access: yes, 2013
A convenient and practical esterification was realized and this reaction proceeded without a dehydrating reagent or water removal equipment. The synthesis of esters by reaction of carboxylic acids with various alcohols such as methyl, ethyl, isopropyl ...
陳明毅;李世元
core   +1 more source

Hidroesterificação enzimática de óleos de soja e de fritura em sistema de ultrassom [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2015.Neste trabalho estudou-se novas alternativas para produção de ésteres via hidroesterificação enzimática de
Zenevicz, Mara Cristina Picoli
core  

Chemo-Enzymatic Epoxidation of Unsaturated Fatty Acids

open access: yes, 2006
Epoxy fatty acids are useful molecules and find a number of applications e.g. as PVC plasticisers and stabilisers, additives in polyurethane production, reactive diluents in paints, corrosion protection agents, etc.
Orellana Coca Åkerman, Cecilia
core   +1 more source

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

open access: yes, 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   +4 more
core   +1 more source

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

open access: yes, 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   +15 more
core   +1 more source

Síntese e caracterização de catalisadores óxidos metálicos para oxidação catalítica total de BTX (benzeno, tolueno e orto-xileno) e transformação química de monoterpenos [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.A pesquisa sobre o desenvolvimento de novas tecnologias que possibilitem a substituição das ...
Balzer, Rosana
core  

การพัฒนากระบวนการเอสเตอริฟิเคชันสองขั้นตอนของน้ำมันพืชเสียกรดไขมันอิสระสูง

open access: yes, 2017
Thesis (Ph.D., Chemical Engineering)--Prince of Songkla University, 2017The use of edible oils in biodiesel production has higher cost than use of lower grade feedstocks such as waste vegetable oils (WVOS).
Songtham Photaworn
core  

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