Results 41 to 50 of about 135,807 (258)

Sisal cellulose acetates obtained from heterogeneous reactions

open access: yeseXPRESS Polymer Letters, 2008
In the present work, cellulose obtained from sisal, which is a source of rapid growth, was used. Cellulose acetates were produced in heterogeneous medium, using acetic anhydride as esterifying agent and iodine as catalyst, to check if the procedure ...
doaj   +1 more source

Iron-catalyzed [4 + 2] annulation of α,β-unsaturated ketoxime acetates with enaminones toward functionalized pyridines

open access: yesGreen Synthesis and Catalysis, 2021
The iron-catalyzed [4 ​+ ​2] annulation of α,β-unsaturated ketoxime acetates with enaminones has been developed, providing efficient access to highly substituted pyridines in moderate to good yields.
Jindian Duan   +7 more
doaj  

Significance of the High Abundance of Pentacyclic Triterpenyl and Hopenyl Acetates in Sphagnum Peat Bogs from Northern Spain

open access: yesQuaternary, 2019
Global warming is expected to increase the rate of CH4 emission from acidic peatlands leading to an increased interest on its mechanisms of formation.
Veneranda López-Días   +4 more
doaj   +1 more source

Scalable Green Approach Toward Fragrant Acetates

open access: yesMolecules, 2020
The advantageous properties of ethylene glycol diacetate (EGDA) qualify it as a useful substitute for glycerol triacetate (GTA) for various green applications.
Eva Puchl’ová, Peter Szolcsányi
doaj   +1 more source

Asymmetric preparation of antifungal 1-(4 -chlorophenyl)-1-cyclopropyl methanol and 1-(4 -chlorophenyl)-2-phenylethanol. Study of the detoxification mechanism by Botrytis cinerea [PDF]

open access: yes, 2011
Chiral alcohols are important as bioactive compounds or as precursors to such molecules. On the basis of the different antifungal properties of the enantiopure alcohol derivatives of 4-chlorophenyl cyclopropyl ketone and benzyl 4-chlorophenyl ketone ...
Aleu Casatejada, Josefina   +4 more
core   +2 more sources

Simulation of an electrolytic bath for electrodeposition of multilayer shielding coatings [PDF]

open access: yes, 2015
In this the calculation work galvanic bath of Cu/(Ni+Cu) multilayer shielding coatings formation from an acetate electrolyte containing 0,03 mol/L of CuAc2, 0,3 mol/L of NiAc2 and 1,66 mol/L of acetic acid were made.
Dayanov, A. D.   +2 more
core   +3 more sources

Evolution of aromatic compounds during the second fermentation and aging of Brazilian sparkling wine

open access: yesBIO Web of Conferences, 2016
In this work, we evaluate the physic-chemical characteristics and volatile compounds during the second fermentation and aging of typical Brazilian sparkling wines.
Verzeletti Andrelise   +4 more
doaj   +1 more source

Genetic Locus and Structural Characterization of the Biochemical Defect in the O-Antigenic Polysaccharide of the Symbiotically Deficient \u3cem\u3eRhizobium etli\u3c/em\u3e Mutant, CE166 [PDF]

open access: yes, 2003
The O-antigen polysaccharide (OPS) of Rhizobium etli CE3 lipopolysaccharide (LPS) is linked to the core oligosaccharide via an N-acetylquinovosaminosyl (QuiNAc) residue.
Box, Jodie M.   +3 more
core   +1 more source

Reactivity of Acyclic (pentadienyl)iron(1+) Cations with Phosphonate Stabilized Nucleophiles: Application to the Synthesis of Oxygenated Metabolites of Carvone [PDF]

open access: yes, 2016
The addition of phosphonate stabilized carbon nucleophiles to acyclic (pentadienyl)iron(1+) cations proceeds predominantly at an internal carbon to afford (pentenediyl)iron complexes.
Donaldson, William   +4 more
core   +2 more sources

Gas-liquid chromatography of dialkyl, alkyl acyl, and diacyl derivatives of glycerol

open access: yesJournal of Lipid Research, 1969
Dialkyl, alkyl acyl, and diacyl glycerols were resolved as trimethylsilyl ethers and as acetates by gas-liquid chromatography on a nonpolar stationary phase (OV-1).
Randall Wood   +3 more
doaj  

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