Results 31 to 40 of about 221 (105)

Recent Developments in the Biosynthesis of Aziridines

open access: yesChemBioChem, Volume 25, Issue 16, August 19, 2024.
Aziridines are highly strained three‐membered rings comprised of two carbon atoms and one nitrogen atom. Natural products containing aziridines have been known for decades and used as drugs, but the biological origins of the aziridine ring were unknown until 2021.
Sabina J. Maurer   +2 more
wiley   +1 more source

The influence of the solvent on organic reactivity. Part II. Hydroxylic solvent effects on the reaction rates of diazodiphenylmethane with 2-(2-substituted cyclohex-1-enyl)acetic and 2-(2-substituted phenyl)acetic acids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The rate constants for the reaction of diazodiphenylmethane with 2-(2-substituted cyclohex-1-enyl)acetic acids and 2-(2-substituted phenyl)acetic acids, previously determined in seven hydroxylic solvents, were correlated using the total solvatochromic ...
VERA V. KRSTIC   +2 more
doaj  

The reactivity of a,b-unsaturated carboxylic acids. Part XVI. The kinetics of the reaction of cycloalkenylcarboxylic and cycloalkenylacetic acids with diazodiphenylmethane in various alcohols [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
The rate constants for the reaction of diazodiphenylmethane with 1-cyclopentenecarboxylic, 1-cycloheptenecarboxylic, cyclopent-1-enylacetic and cyclohept-1-enylacetic acids were determined in eight alcohols at 30°C using the appropriate UV-spectroscopic ...
VERA V. KRSTIC   +2 more
doaj  

Original scientific paper

open access: yes, 2002
The kinetics of the reactions of 2-substituted nicotinic acids with diazodiphenylmethane in various ...

core  

Transmission of polar effects. Part XI. Polar and steric effects in the reactions of arylaliphatic carboxylic acids

open access: yes, 1969
The rate coefficients for the reaction with diazodiphenylmethane in ethanol at 30° and the acid-catalyzed esterification with methanol at 60° of a number of arylaliphatic carboxylic acids and their pKa values in 80% 2-methoxyethanol–water have been ...
R. C. Young, Keith Bowden
core   +1 more source

A Linear Solvation Energy Relationship Study for the Reactivity of 2-(4-Substituted Phenyl)-cyclohex-1-enecarboxylic, 2-(4-Substituted Phenyl)-benzoic, and 2-(4-Substituted Phenyl)-acrylic Acids with Diazodiphenylmethane in Various Solvents

open access: yes, 2010
The reactivities of 2-(4-substituted phenyl)-cyclohex-1-enecarboxylic acids, 2-(4-substituted phenyl)-benzoic acids, and 2-(4-substituted phenyl)-acrylic acids with diazodiphenylmethane in various solvents were investigated.
Ušćumlić, Gordana   +5 more
core   +1 more source

A quantitative analysis of solvent effects on reaction constant

open access: yes, 1980
Solvent effects on reaction constant ρ for the dissociation equilibria of several series of organic acids are analysed in terms of three factors, namely, (i) variation in the effective dielectric constant, (ii) variation in the hydrogen-bonding ability ...
B Poh
core   +1 more source

A Kinetic Characterization of the Reactions of Anion Radicals of Diazodiphenylmethane in Acetonitrile. [PDF]

open access: yesActa Chemica Scandinavica, 1981
Vernon D. Parker   +4 more
openaire   +1 more source

UDC Original scientific paper

open access: yes, 2014
The reactivity of , -unsaturated carboxylic acids. Part XVI. The kinetics of the reaction of cycloalkenylcarboxylic and cycloalkenylacetic acids with diazodiphenylmethane in various ...

core  

3. THE KAMLET–TAFT METHOD FOR THE EXAMINATION OF SOLVENT EFFECTS ON

open access: yes, 2009
The study of linear solvation energy relationship for the reactivity of carboxylic acids with diazodiphenylmethane in protic and aprotic solvents doi: 10.2298 ...
Gordana S. Ušćumlić   +1 more
core  

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