نتایج جستجو برای: williamson ether synthesis

تعداد نتایج: 430501  

Journal: :Chemie Ingenieur Technik 2022

Abstract Oxymethylene ethers (OME) are an attractive alternative to fossil diesel fuel due strongly reduced harmful emissions. An anhydrous, liquid phase production process based on dimethyl ether (DME) has been elaborated, which offers high selectivity and economic advantages. A catalyst screening for the reaction of DME with trioxane carried out. Highly active catalysts could be identified fu...

Journal: :Journal of lipid research 1982
G Fredrikson L Krabisch P Belfrage

Procedures for the synthesis and purification of two 14C-labeled alkyl polyoxyethylene detergent preparations are described. One of the preparations consisted mainly of [14C]dodecyloctaoxyethylene ether, the other consisted mainly of [14C] octylhexaoxyethylene ether, with critical micellar concentrations of approximately 50 microM and 10 mM, respectively. Condensation of alkyl bromides with fra...

Journal: :Cancer research 2004
Kasem Nithipatikom Michael P Endsley Marilyn A Isbell John R Falck Yoshiki Iwamoto Cecilia J Hillard William B Campbell

Endocannabinoids have been implicated in cancer. Increasing endogenous 2-arachidonoylglycerol (2-AG) by blocking its metabolism inhibits invasion of androgen-independent prostate cancer (PC-3 and DU-145) cells. Noladin ether (a stable 2-AG analog) and exogenous CB1 receptor agonists possess similar effects. Conversely, reducing endogenous 2-AG by inhibiting its synthesis or blocking its binding...

2017
Iole Venditti Laura Fontana Francesca A. Scaramuzzo Maria Vittoria Russo Chiara Battocchio Laura Carlini Laurent Gonon Vincent H. Mareau Ilaria Fratoddi

Gold nanoparticles, capped by 3-mercapto propane sulfonate (Au-3MPS), were synthesized inside a swollen sulfonated poly(ether ether ketone) membrane (sPEEK). The formation of the Au-3MPS nanoparticles in the swollen sPEEK membrane was observed by spectroscopic and microscopic techniques. The nanocomposite containing the gold nanoparticles grown in the sPEEK membrane, showed the plasmon resonanc...

Journal: :Journal of lipid research 1977
A Radominska-Pyrek J Strosznajder Z Dabrowiecki G Goracci T Chojnacki L A Horrocks

The formation of product by ethanolamine phosphotransferases (EC 2.7.8.1) and cholinephosphotransferases (EC 2.7.8.2) in microsomal fractions from brains and livers of mature rats is increased several fold by 1,2-diacyl-sn-glycerols. With the addition of 1-alkyl-2-acyl-sn-glycerols, we have found an 11-fold increase with brain microsomes and a 20-fold increase with lvier microsomes in the synth...

Journal: :Chemical & pharmaceutical bulletin 2000
D Shan A Zheng C E Ballard W Wang R T Borchardt B Wang

A "trimethyl lock" system has been known to facilitate lactonization reactions through what has been termed a stereopopulation control mechanism. We have found that a similar trimethyl lock system can also facilitate cyclic ether formation with the concomitant release of a carboxylic acid in the presence of anhydrous tetrabutylammonium fluoride. To study this base-mediated trimethyl lock-facili...

2016
Naoko Aoyama Peter C. Williamson Seyed Mirsattari

s: Aoyama N, Théberge J, Williamson KE, Drost DJ, Manchanda R, Malla AK, NorthcottS, Menon RS, Neufeld RWJ, Rajakumar N, Densmore M, Schaefer B, Williamson PC.“Longitudinal Study of Schizophrenia: Gray Matter Loss and Glutamtaregic Activity inthe Limbic Basal Ganglia Thalamo-Cortial Circuit (BGTC)”. Department PsychiatryAnnual Research Day, University of Western Ontario, London,...

Journal: :Bioorganic & Medicinal Chemistry Letters 2016

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