Results 201 to 210 of about 10,116 (242)

Polyglycerol‐Tagged Molecular Clips as Receptors in Protic Solvents

European Journal of Organic Chemistry, 2012
AbstractFour charge‐neutral molecular clips modified with polyglycerol (PG) dendrons of first and second generation and with hyperbranched polyglycerols (HPG) in the central unit as solubilizing units were synthesized. Their use as supramolecular hosts for the complexation of several guest molecules such as caffeine, N‐methylnicotinamide iodide, and ...
Zieringer, Maximilian, Casas Cartagena, Marçal, Burakowska, Ewelina, Taktikos, Johannes, Neuthe, Katja, Bandmann, Heinz, Klärner, Frank-Gerrit, Haag, Rainer   +7 more
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Solvent-mediated molar conductivity of protic ionic liquids

Physical Chemistry Chemical Physics, 2015
The molar conductivity, Λm, of protic ionic liquids (PILs) in molecular solvents is measured at 298.15 K.
Sachin, Thawarkar, Nageshwar D, Khupse, Anil, Kumar   +2 more
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Solvation of acetone in protic and aprotic solvents and binary solvent mixtures

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1985
The infrared spectra of dilute solutions of acetone in a range of protic and aprotic solvents have been measured in the C—O stretch region. Band maxima are shown to correlate linearly with 13C n.m.r. shifts for the carbonyl carbon and, after suitable corrections, with solvent acceptor numbers.
Martyn C. R. Symons, Graham Eaton
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Solubility and reactivity of caseins and β-lactoglobulin in protic solvents

Journal of Protein Chemistry, 1992
The study of the solubility of unstructured proteins (alpha s1-, beta-, and kappa-casein) and well-structured globulin (beta-lactoglobulin) in low water binary solvent systems demonstrated the crucial importance of solvent polarity and neutralization of protein polar functions on the final outcome of solubility experiments.
Touati, A., Creuzenet, Carole, Chobert, Jean-Marc, Dufour, E., Haertlé, Thomas   +4 more
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Photooxidation of Co-thiolato complexes in protic and aprotic solvents

Chemical Communications, 2006
Protic solvents decrease the susceptibility of the thiolate ligand in Co(III) thiolato complexes toward attack by singlet oxygen, but greatly increase the conversion of the peroxidic intermediate to the sulfenato product.
Billy, Hernandez, Yanju, Wang, Dong, Zhang, Matthias, Selke   +3 more
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Influence of Solvent Polarity and Proticity on the Photochemical Properties of Norfloxacin

Photochemistry and Photobiology, 1998
Abstract— The fluoroquinolone antibacterial norfloxacin (NF) is a moderate photosensitizer of singlet molecular oxygen (1O2). We have studied photosensitization by NF as a function of medium polarity and proticity in solvent mixtures. We have used 1,4‐dioxane and propylene carbonate mixtures to keep proticity constant while modulating polarity, and ...
P, Bilski, L J, Martinez, E B, Koker, C F, Chignell   +3 more
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Photochemical addition of protic solvents to 1-phenylcycloalkenes

Tetrahedron, 1971
Abstract Direct photolysis of 6–8-membered 1-phenylcycloalkenes (1a–1c) dissolved in acetic or propionic acid gives mainly the corresponding esters (2), which are also obtained in the acetophenone-sensitized reactions. Minor products in the direct photolysis of 1a and 1b are hydrogenation (3) and alkylation products (4), while 8-membered 1c yields 1 ...
S. Fujita, Y. Hayashi, T. Nômi, H. Nozaki   +3 more
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Electroreduction of hexachlorobenzene in protic solvent at Hg cathodes

Journal of Applied Electrochemistry, 1998
The electrochemical reduction of hexachlorobenzene (HCB) to lower chlorinated benzenes has been studied in methanol solution. Differential pulse voltammetry at a sessile mercury drop cathode showed four reduction waves at E=−1.13, −1.33, −1.57 and −1.84V vs the standard hydrogen electrode, corresponding to sequential reduction to penta-, tetra-, tri ...
S. G. Merica, N. J. Bunce, W. Jedral, J. Lipkowski   +3 more
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Solvent-free transformation of protic ionic liquids into zwitterions

Chemical Communications
Protic ionic liquids containing a vinyl-sulfonylamide anion catalytically transformed into zwitterions upon addition of a base under solvent-free conditions.
Yosuke Nakazono, Ryota Inoue, Ryo Sumitani, Tomoyuki Mochida   +3 more
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New protic salts of aprotic polar solvents

Tetrahedron Letters, 2004
Abstract Aprotic polar solvents such as DMF, acetonitrile or DMSO can be protonated to form stable triflate salts when treated with triflic acid. The reaction of the same solvents with N , N -bis(trifluoromethanesulfonyl)imide led to the isolation of the corresponding N , N -bis(trifluoromethanesulfonyl)imide salts.
Isabelle Favier, Elisabet Duñach
openaire   +1 more source