𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Polar Effects in Halogen Abstraction Reactions of Alkyl Radicals

✍ Scribed by Giese, Bernd ;Hartung, Jens


Publisher
Wiley (John Wiley & Sons)
Year
1992
Tongue
English
Weight
322 KB
Volume
125
Category
Article
ISSN
0009-2940

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Polar Effects in the Addition of Alkyl R
✍ Priv.-Doz. Dr. Bernd Giese; Dipl.-Chem. JΓΌrgen Meister πŸ“‚ Article πŸ“… 1977 πŸ› John Wiley and Sons 🌐 English βš– 198 KB πŸ‘ 2 views

**The presence of a negative partial charge on the benzylic carbon atom in the transition state** __(1)__ can be deduced from the experimentally determinable Hammett Ο± values. Alkyl radicals R^Λ™^ are accordingly seen to develop nucleophilic properties during addition to olefins. equation image

Polar effects in radical addition reacti
✍ Giese, Bernd ;He, Jianing ;Mehl, Wolf πŸ“‚ Article πŸ“… 1988 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 288 KB πŸ‘ 1 views

Methyl radicals substituted by one ester or nitrile group are on the borderline between nucleophilic and electrophilic behavior. In addition reactions of these borderline radicals to styrenes, polar effects of both, electron-withdrawing and electron-donating substituents at the alkeae, increase the

Separation of polar and enthalpy effects
✍ KΓ‘roly HΓ©berger; Antal Lopata; J. Cs. JΓ‘szberΓ©nyi πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 87 KB πŸ‘ 2 views

Rate constants (k) of radical addition reactions between 15 carbon-and sulfur-centered radicals and 15 vinyl-type alkenes were collected from the literature. Three descriptor variables {a polar (Hammett) sigma scale [s(H)] and two radical sigma scales as defined by Creary and co-workers [s Á (C)] an