Results 71 to 80 of about 124,244 (129)

Isolation and X-ray Structures of Labile Benzoic- and Acetic-Acidium Carbocations [PDF]

, 2005
New carbocationic salts (via O-protonation of substituted benzoic acids) are prepared for the first time by controlled hydration of the corresponding benzoylium salts and isolated in pure crystalline form.
Davlieva, M. G., Kochi, Jay K., Lindeman, Sergey V., Neretin, I. S.   +3 more
core   +1 more source

Lone‐Pair Shielded Radicals: Beyond the Captodative Substitution Pattern

ChemistryEurope
We have quantum chemically analyzed how substituents R affect the carboncarbon bond strength in 1,2‐disubstituted ethane, RH2CCH2R (R = H, CH3, NH2, OH, F), using density functional theory.
Steven E. Beutick, Maarten J. H. van Dorp, Trevor A. Hamlin, J. Martijn van der Schuur, Daniela Rodrigues Silva, F. Matthias Bickelhaupt   +5 more
doaj   +1 more source

MODELLING DRUG-RECEPTOR INTERACTIONS IN AN AVERAGE BINDING SITE FOR NK2

TASK Quarterly, 1998
A tentative procedure applied to the search for a new antagonist of the neurokinin A (NKA) is presented. In parallel a tentative 3-D model of the NK2 receptor was created, using bacteriorhodopsin (BRD) as a template.
GIULIANO ALAGONA, CATERINA GHIO, SUSANNA MONTI   +2 more
doaj  

Bacterial reaction centers with modified tetrapyrrole chromophores [PDF]

, 1993
Deisenhofer, J., Scheer, Hugo, Struck, A.   +2 more
core   +1 more source

SUBSTITUENT EFFECTS IN ACETOXYMERCURATION OF ARYL(TRIMETHYLSILYL)ETHYNES

Main Group Metal Chemistry, 1999
Floris, Barbara, Toppi, Luca
doaj   +1 more source

Sigma Hole Potentials as Tools: Quantifying and Partitioning Substituent Effects. [PDF]

J Phys Chem A, 2023
Donald KJ, Pham N, Ravichandran P.
europepmc   +1 more source

SUBSTITUENT EFFECTS IN ACETOXYMERCURATION OF ARYLPHENYLETHYNES

Main Group Metal Chemistry, 1998
Ballico, Enrico, Floris, Barbara
doaj   +1 more source

Kinetics of the reactions of the p-methoxy-substituted benzhydryl cation with various alkenes and 1,3-dienes [PDF]

, 1990
Irrgang, Bernhard, Mayr, Herbert, Schade, Christian, Schneider, Reinhard   +3 more
core   +1 more source

Substituent Effects of Fluorescein on Photoredox Initiating Performance under Visible Light. [PDF]

ACS Omega, 2023
Choi WO, Jung YJ, Kim M, Kim H, Li J, Ko H, Lee HI, Lee HJ, Lee JK.   +8 more
europepmc   +1 more source

Substituent Effects in Bioorthogonal Diels-Alder Reactions of 1,2,4,5-Tetrazines. [PDF]

Chemistry, 2023
Houszka N, Mikula H, Svatunek D.
europepmc   +1 more source