Results 11 to 20 of about 3,002,287 (282)

Controlling alkyne reactivity by means of a copper-catalyzed radical reaction system for the synthesis of functionalized quaternary carbons [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2020
A terminal alkyne is one of the most useful reactants for the synthesis of alkyne and alkene derivatives. Because an alkyne undergoes addition reaction at a C–C triple bond or cross-coupling at a terminal C–H bond. Combining those reaction patterns could
Goki Hirata   +4 more
doaj   +2 more sources

Experimental and computational studies of hydroxyl radical kinetics at very low temperatures [PDF]

open access: yes, 2012
In this thesis low temperature rate coefficients have been measured for a number of reactions involving the OH radical using a pulsed Laval nozzle apparatus.
Shannon, Robin Joseph
core   +6 more sources

Kinetics and mechanism of the reaction of acetonyl radical, CH3(CO)CH2, with Br2 [PDF]

open access: yes, 2013
The low pressure fast discharge flow method with laser induced fluorescence detection of CH3C(O)CH2 was employed to study the kinetics of the reaction CH3C(O)CH2 + Br2 → CH3C(O)CH2Br + Br (1) at 298, 323 and 365 K.
Zügner, Gábor L.   +6 more
core   +2 more sources

Dormant radical technology synthesis of materials and potential applications [PDF]

open access: yes, 2011
This research was focused on the study of the polymer dormant radical systems, species containing free radical structures that have longer lifetimes and greater stability than radicals in general.
Garcia Con, Luis Miguel
core   +7 more sources

Recombination dynamics in bacterial photosynthetic reaction centers [PDF]

open access: yes, 1982
The time dependence of magnetic field effects on light absorption by triplet-state and radical ions in quinone-depleted reaction centers of Rhodopseudomonas sphaeroides strain R-26 has been investigated.
Haberkorn, R.   +8 more
core   +1 more source

Rate constants for the reaction of NO and HO2 with peroxy radicals formed from the reaction of OH, Cl or NO3 with alkenes, dienes and α,β-unsaturated carbonyls [PDF]

open access: yes, 2003
Rate constants for the gas-phase reaction of NO and HO2 radicals with 33 peroxy radicals are presented. The peroxy radicals are derived from the addition of either OH, Cl, or NO3 radicals, followed by addition of O2, to a series of alkenes ...
King, M.D., Thompson, Katherine C.
core   +1 more source

Free Radical Isomerizations in Acetylene Bromoboration Reaction

open access: yesMolecules, 2021
The experimentally motivated question of the acetylene bromoboration mechanism was addressed in order to suggest possible radical isomerization pathways for the syn-adduct.
Hugo Semrád   +2 more
doaj   +1 more source

Dialkylzincs in Radical Reactions

open access: yesCHIMIA, 2006
This review describes recent developments in the use of dialkylzincs in radical reactions. In most of the processes reported therein, dialkylzincs act simultaneously as sources of alkyl radicals, as Lewis acids, and as chain transfer agents. A parallel is drawn with the behaviour of trialkylboranes in similar reactions.
Bazin, S., Feray, L., M.P., Bertrand
openaire   +5 more sources

Aliphatic Radical Relay Heck Reaction at Unactivated C(sp3)–H Sites of Alcohols [PDF]

open access: yes, 2018
The Mizoroki−Heck reaction is one of the most efficient methods for alkenylation ofaryl, vinyl, and alkyl halides. Due to its innate nature, this protocol requires the employment of compounds possessing a halogen atom at the site of functionalization ...
Yang, Wang   +6 more
core   +1 more source

Intermolecular addition reactions of N-alkyl-N-chlorosulfonamides to unsaturated compounds

open access: yesBeilstein Journal of Organic Chemistry, 2015
N-Alkyl-N-chlorosulfonamides add to alkenes under copper(I) catalysis. In reactions of styrene derivatives with terminal double bonds the addition products were obtained in excellent yield and high regioselectivity.
Gerold Heuger, Richard Göttlich
doaj   +1 more source

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