Results 31 to 40 of about 55,314 (289)
Direct Access to Substituted 4-CF3 β-Lactams at the C-3 Position
Frontiers in Chemistry, 2019 Mono- and disubstituted 4-CF3 β-lactams at the C-3 position have been obtained stereoselectively under basic conditions. A wide range of function such as alcohols, alkyls, aryls, esters, and double and triple bonds have been introduced.
Monika Skibińska +8 more
doaj +1 more source
Solvent effects on glyphosate deprotonation: DFT theoretical studies
Chemical Physics Impact, 2023 To better understand the molecular structures of glyphosate in different solvents, we have studied several possible conformations, and their relative abundances, of glyphosate and its deprotonated forms, in acetone, acetonitrile, DMSO, water, ethanol ...
Alberto G. Albesa +1 more
doaj +1 more source
Biradical Formation by Deprotonation in Thiazole-Derivatives: The Hidden Nature of Dasatinib [PDF]
, 2019 The formation of stable organic biradicals by a deprotonation process is reported for a series of conjugated heterocycles that share a Ph-N(H)-2-thiazole structural motif.
Iberio de P. R, Moreira +8 more
core +1 more source
A new fluorescent chemosensor for fluoride anion based on a pyrrole–isoxazole derivative
Beilstein Journal of Organic Chemistry, 2011 Molecules containing polarized NH fragments that behave as anion-binding motifs are widely used as receptors for recognition and sensing purposes in aprotic solvents.
Zhipei Yang +9 more
doaj +1 more source
Inorganics, 2019 Synthesis and reactivities of a new mononuclear hydroxidoiridium(III) complex with a pentamethylcyclopentadienyl (Cp*) ligand are reported. The hydroxido ligand was introduced into an iridium complex having a nonprotic amine chelate derived from N-mesyl ...
Shoko Kamezaki +3 more
doaj +1 more source
Deprotonation of Lithiated Benzenes [PDF]
, 2016 The deprotonation energies of all possible lithiobenzenes (C6LinH6-n, n = 0−5) were computed at B3LYP/6-311+G(d,p). Based on natural population analysis, the conjugate bases can be thought of as salts between a polyanionic phenyl core and associated ...
Adam C. Chamberlin (1441600) +1 more
core +1 more source
Role of Benzylic Deprotonation in Nickel-Catalyzed Benzylic Dehydrogenation [PDF]
, 2021 Alkylarenes are readily functionalized via the corresponding benzylic anions. Benzylic anions have been used for a range of catalytic reactions, including Ni-catalyzed dehydrogenation.
Pengpeng Zhang +2 more
core +1 more source
Remarkable Deprotonation Energies of Tetraphosphacubanes [PDF]
, 2016 Remarkable Deprotonation Energies of ...
BettyCep D. Gailbreath (3003651) +1 more
core +1 more source
Efficient Unimolecular Deprotonation of Aniline Radical Cations [PDF]
, 2016 Deprotonation of the radical cations of aromatic amines, such as anilines, generally occurs much more slowly than other fragmentation reactions. Here we report a stereoelectronic effect involving twisting of the anilino group out of the plane of the ...
Gary W. Dombrowski (2683207) +5 more
core +1 more source
Deprotonation of Calixarenes in Acetonitrile [PDF]
, 2016 The pKa values for calixarenes in MeCN have been determined by selective titration with bases using a spectroscopic method. These values are as follows: calix[4]arene pKa(1) = 19.06 ± 0.22, pKa(2) > 33; calix[6]arene pKa(1) = 15.59 ± 0.06, pKa(2) = 23 ...
Marc Woolfall (2664163) +1 more
core +1 more source