Results 31 to 40 of about 6,249,163 (357)

3-Isobutyl-5,5,7-tris(3-methylbut-2-en-1-yl)-1-phenyl-1,7-dihydro-4H-indazole-4,6(5H)-dione

open access: yesMolbank, 2022
Here we describe the functionalization of lupulone natural compound in obtaining 3-isobutyl-5,5,7-tris(3-methylbut-2-en-1-yl)-1-phenyl-1,7-dihydro-4H-indazole-4,6(5H)-dione.
José Edmilson Ribeiro do Nascimento   +3 more
doaj   +1 more source

Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]

open access: yes, 2011
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W.   +2 more
core   +2 more sources

Organic synthesis under solvent-​free condition: an environmentally benign procedure - I [PDF]

open access: yes, 2002
A review. The growing concern to minimize the environmental pollution caused by solvents and the increasing interest in solid-​solid reactions have led to the development of methodologies for solvent-​free reactions with considerable success.
Nagendrappa, G.
core   +1 more source

EXTRACTION OF PALM OIL’S FREE FATTY ACIDS BY TRIETHYLAMMINE (TEA) IN POLAR-NONPOLAR MIX-SOLVENT

open access: yesIndonesian Journal of Chemistry, 2010
Palm oil contains unsaturated fatty acids that can be oxidated and can make rancidity of the palm oil. One of the trigliserida degradation products is free fatty acid. The usage of triethylammine (TEA) in the polar-nonpolar mix solvents could enhance the
Endang Astuti   +2 more
doaj   +1 more source

Synthesis of novel β-aminocyclobutanecarboxylic acid derivatives by a solvent-free aza-Michael addition and subsequent ring closure [PDF]

open access: yes, 2011
Novel beta-aminocyclobutanecarboxylic acid derivatives were prepared via a sequential solvent-free aza-Michael addition of benzophenone imine across 3-halopropylidenemalonates and base-induced ring closure.
Aitken   +44 more
core   +1 more source

Cycling stability of a hybrid activated carbon//poly(3- methylthiophene) supercapacitor with N-butyl-Nmethylpyrrolidinium bis(trifluoromethanesulfonyl)imide ionic liquid as electrolyte [PDF]

open access: yes, 2005
A long cycle-life, high-voltage supercapacitor featuring an activated carbon//poly(3-methylthiophene) hybrid configuration with N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide ionic liquid, a solvent-free green electrolyte, was ...
Balducci, Andrea   +5 more
core   +2 more sources

Completely Solvent-free Protocols to Access Phase-Pure, Metastable Metal Halide Perovskites and Functional Photodetectors from the Precursor Salts

open access: yesiScience, 2019
Summary Mechanochemistry is a green, solid-state, re-emerging synthetic technique that can rapidly form complex molecules and materials without exogenous heat or solvent(s).
Zonghan Hong   +9 more
semanticscholar   +1 more source

Selective Stobbe condensation under solvent-free conditions [PDF]

open access: yes, 2000
Solvent-free condensation of cyclohexanone (1) and diethyl succinate (2) in the presence of ButOK at room temperature gives cyclohexylidenesuccinic acid (3), while heating a mixture of 1, 2 and ButOK at 80 °C gives only cyclohexenylsuccinic acid (4)
Sugino Teizo   +5 more
core   +2 more sources

Extrusion - back to the future: using an established technique to reform automated chemical synthesis [PDF]

open access: yes, 2016
YesHerein, the benefits which extrusion can provide for the automated continuous synthesis of organic compounds are highlighted. Extrusion is a well-established technique that has a vital role in the manufacturing processes of polymers, pharmaceuticals ...
Crawford, Deborah E.
core   +2 more sources

Solvent-Free Fabrication of Thick Electrodes in Thermoplastic Binders for High Energy Density Lithium-Ion Batteries

open access: yesNanomaterials, 2022
The rapid development of electric vehicles has generated a recent demand for high energy density lithium-ion batteries (LIBs). One simple, effective way to enhance energy density of LIBs is to increase the thickness of electrodes.
Han-Min Kim   +4 more
doaj   +1 more source

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