Results 41 to 50 of about 9,178 (246)

Synthesis and Antimicrobial Activity of Novel Substituted Ethyl 2-(Quinolin-4-yl)-propanoates

open access: yesMolecules, 2013
Substituted 4-hydroxyquinolines were synthesized from anilines and diethyl 2-(ethoxymethylene)malonate by the Gould-Jacobs reaction via cyclization of the intermediate anilinomethylenemalonate followed by hydrolysis and decarboxylation.
Yong Zhou   +3 more
doaj   +1 more source

Superhydrophobic surfaces with low and high adhesion made from mixed (hydrocarbon and fluorocarbon) 3,4-propylenedioxythiophene monomers [PDF]

open access: yes, 2014
International audienceThis work concerns new superhydrophobic surfaces, generated by replacing long fluorocarbon chains, which bioaccumulate, with short chains whilst at the same time retaining oleophobic properties.
Amigoni, Sonia   +6 more
core   +5 more sources

Esterification of dicarboxylic acids to diesters over Mn+-montmoril lonite clay catalysts [PDF]

open access: yes, 2005
Esterification of dicarboxylic acids with various alcohols and phenols in presence of metal exchanged montmorillonite clay catalyst (Mn+-mont; Mnþ ¼ Al3þ, Fe3+, Cr3+, Zn2+, Mn2+, and Ni2+) is studied.
Gopalpur Nagendrappa, .   +3 more
core   +1 more source

Tricyclo[3,3,1,01,5]nonan-tetracarbonsäure-(3,3,7,7)-tetraäthylester, 3,7-Dithia-tricyclo[3,3,1,01,5]nonan und 3,7-Dithia-tricyclo[3,3,2,01,5]decan

open access: yesCHIMIA, 1968
The compound II is obtained by condensation of the tetramesylate Ic with sodium diethyl malonate in toluene. The dithiacompounds III and V are formed by refluxing of Ic respectively 1,1,2,2-tetrakis-hydroxymethyl-cyclobutane-tetramesylate with Na2S ∙ 9 ...
Emil Buchta, Arno Kröniger
doaj   +1 more source

Synthesis and Characterisation of Various Diester and Triester Adducts of TiCl4 [PDF]

open access: yes, 2015
Titanium(IV) chloride and the triester glycerol tribenzoate (gtb) were reacted under moisture-free conditions in order to investigate the use of triester-containing oils in the purification of TiCl4 in industrial processes. This resulted in the isolation
Blackburn, BJ   +6 more
core   +1 more source

Synthesis and Activity of Six-Membered Cyclic Alkyl Amino Carbene–Ruthenium Olefin Metathesis Catalysts [PDF]

open access: yes, 2020
Ru–cyclic alkyl amino carbene (Ru–CAAC) olefin metathesis catalysts perform extraordinarily in metathesis macrocyclization and ethenolysis, but previous studies have been limited to the use of five-membered CAAC (CAAC-5) ligands.
Grubbs, Robert H.   +4 more
core  

Polyoxometalate-intercalated layered double hydroxides as efficient and recyclable bi-functional catalysts for cascade reactions [PDF]

open access: yes, 2016
The polyoxometalate (POM) intercalated-layered double hydroxides (LDHs) have been widely used as heterogeneous catalysts. However, the application of POM-LDHs as bi-functional catalysts for cascade reaction has seldom been studied comparing with the ...
Angelescu   +41 more
core   +1 more source

Synthesis and evaluation of new guanidine-thiourea organocatalyst for the nitro-Michael reaction: Theoretical studies on mechanism and enantioselectivity

open access: yesBeilstein Journal of Organic Chemistry, 2012
A new guanidine-thiourea organocatalyst has been developed and applied as bifunctional organocatalyst in the Michael addition reaction of diethyl malonate to trans-β-nitrostyrene.
Tatyana E. Shubina   +4 more
doaj   +1 more source

Ethyl (1,3-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)acetate

open access: yesMolbank, 2011
Novel ethyl (1,3-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)acetate (5), was prepared via heating of 5-amino-1,3-diphenyl-4,5-dihydro-4-imino-1H-pyrazolo[3,4-d] pyrimidine (1) and diethyl malonate (2) under reflux.
Sobhi M. Gomha, Thoraya A. Farghaly
doaj   +1 more source

Order versus disorder in two isomorphous pyrazolone-substituted diethyl propanedioates prepared using a three-component one-pot reaction under solvent-free conditions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Two new substituted propanedioate esters have been synthesized using a three-component solvent-free thermal reaction between diethyl propanedioate (diethyl malonate), 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde and an aryl azide, forming two ...
Tharangini K. Shreekanth   +4 more
doaj   +1 more source

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