Results 111 to 120 of about 218,279 (284)
N-1 regioselective Michael-type addition of 5-substituted uracils to (2-hydroxyethyl) acrylate
Beilstein Journal of Organic Chemistry, 2007 N-1 regioselective Michael-type addition of 5-substituted uracils to (2-hydroxyethyl) acrylate is presented. The reactions were performed in polar aprotic solvents and with avoidance of polymerization of acrylic substrate.
Sławomir Boncel +2 more
doaj +1 more source
Polymer Chemistry Applications of Cyrene and its Derivative Cygnet 0.0 as Safer Replacements for Polar Aprotic Solvents. [PDF]
ChemSusChem, 2021 Milescu RA +8 more
europepmc +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova +8 more
wiley +1 more source
Journal of Spectroscopy, 2018 Silicon nanoparticles (Si-NPs) were prepared by solution-based chemical etching method. Optical characteristics of the as-prepared Si-NPs were investigated in different polar and nonpolar organic solvents. The emission and absorption properties of Si-NPs
Rawabi M. Al Mohaimeed +2 more
doaj +1 more source
Physicochemical investigations of dipolar aprotic solvents as potential cholelitholytic agents
, 1987 A number of dipolar aprotic solvents have been examined as potential co-solvents for gallstone dissolution. The power of these agents to solubilize such gallstone components as cholesterol, calcium carbonate, calcium palmi-tate and palmitic acid was ...
O I Corrigan, P Kennelly
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.An aprotic poly(N,N‐dimethylacrylamide) matrix provides free C=O sites for strong ion solvation, establishing a stable and homogeneous gel phase. This unique polymer network effectively reduces H2O activity, enabling highly concentrated gel electrolytes for high‐voltage, wide‐temperature, and flexible aqueous sodium‐ion batteries.
Shibo Chai +9 more
wiley +1 more source
The Spectroscopy of Pr3+ Ions in Aprotic Solvents
, 1974 Experimental results are reported for a spectroscopic study of Pr3+ ions dissolved in aprotic solvents. A spectroscopic determination of the induced emission cross section for the 3P0 → 3F2 and 3P0 → 3H6 transitions is described; the values obtained ...
A. Watanabe
core +1 more source
European Journal of Organic Chemistry, EarlyView.Quinine‐catalyzed enantioselective conjugate addition of malononitrile derivatives to enynes provides trisubstituted chiral allenes in good to excellent yields and high enantiopurities under mild conditions. Broad substrate scope, easy scalability, and versatile post‐synthetic transformations into enantioenriched pyrazoles and furans highlight the ...
Martin Kamlar +3 more
wiley +1 more source
Kinetic study of the reaction of tertiary phosphines with acrylic acid in aprotic solvents [PDF]
, 2011 The kinetics of the reaction of tertiary phosphines with acrylic acid in a series of aprotic solvents was studied by spectrophotometry. The data obtained suggest a stepwise mechanism of interaction including initial formation of zwitterionic intermediate
Sobanov A. +5 more
core
European Journal of Organic Chemistry, EarlyView.A tandem reaction of 5‐aroylpyrazolo[3,4‐b]pyridines with malononitrile and methanol to access pyrazolo[3,4‐h][1,6]naphthyridines was achieved in 60%–66% yield under microwave conditions. The tricyclic fluorophoric core bears groups of different stereoelectronic nature (i.e., alkyl, aryl, MeO, and CN), and thus their optoelectronic activity shows ...
Carlos Cifuentes +3 more
wiley +1 more source