Recent Developments in Carbocation and Onium Ion Chemistry by Kenneth K. Laali (Eds.)

By Kenneth K. Laali (Eds.)

content material: Experimental and computational NMR spectroscopic research of silyl-substituted carbocations / Hans-Ullrich Siehl --
Super-stabilization of [pi]-conjugated cations by means of annelation to bicyclic frameworks / Koichi Komatsu --
surprisingly reliable vinyl cations / Thomas Müller ... [et al.] --
Vinyl iodonium salts as precursors to vinyl cations / Tadashi Okuyama and Morifumi Fujita --
new release of alkylideneallyl cations from alkylidenecyclopropanone acetals : selectivity of response with nucleophiles / Morifumi Fujita and Tadashi Okuyama --
Conformational reviews of cyclobutylmethyl cations / V. Prakash Reddy, G.K. Surya Prakash, and Golam Rasul --
power natural cationic complexes : constitution and reactivity / Gennady I. Borodkin and Vyacheslav G. Shubin --
Activation of electrophilic websites via adjoining cationic teams / Douglas A. Klumpp --
Stabilized carbocations as redox lively chromophores : education of electrochromic fabrics utilizing stabilized carbocations / Shunji Ito, Koji Akimoto, and Noboru Morita --
Cation pool procedure and cation circulation technique / Jun-ichi Yoshida --
Fluorenylidene and indenylidene dications : insights approximately antiaromaticity / Nancy S. generators --
new release, balance, and reactions of alkylated fullerene cations / Toshikazu Kitagawa --
Carbocations on surfaces : formation of bicyclobutonium cation through ionization of cyclopropylcarbinyl chloride over NaY zeolite / Marcelo Franco ... [et al.] --
MO calculations related to [mu]-hydrido cation intermediates suitable to the heptane to toluene dehydrocyclization response / Ted S. Sorensen and Esther C.F. Yang --
Theoretical stories on constitution and dynamics of carbonium ions / Pierre M. Esteves, Felipe P. Fleming and André G.H. Barbosa --
Quantum chemical reports of carbocations from oxidized metabolites of Aza-polycyclic fragrant hydrocarbons / Gabriela L. Borosky and Kenneth ok. Laali --
How does carbocation balance regulate the Beckmann rearrangement response? / Salai C. Ammal and Hiroshi Yamataka --
Solvent results at the chemistry of bromonium and [beta]-bromocarbenium ions as reactive intermediates / Cinzia Chiappe --
Syntheses of the CFY₂ (Y = Cl, Br) and CX₃⁺ (X = Cl, Br, OTeF₅) cations making use of the noble-gas oxidant, XeOTeF₅⁺Sb(OTeF₅)₆⁻ / Hélène P.A. Mercier, Matthew D. Moran, and Gary J. Schrobilgen --
Organoxenonium salts : synthesis via "xenodeborylation", reactivities, and NMR spectroscopic homes / H.-J. Frohn and V.V. Bardin --
Halogen move reactions from bis-amino halonium ions to acceptor olefins : mechanism and techniques for chiral halogenation / R. Stan Brown ... [et al.] --
Synthesis of phosphonium salts by means of metal-catalyzed addition response / Mieko Arisawa and Masahiko Yamaguchi.

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2]octene (abbreviated as B C O throughout the present article) can greatly stabilize a typical cyclic π-conjugated carbocation, the tropylium ion, as shown in Table I for several di-substituted derivatives (Figure 1) (4,5): here the pK + value is taken as the criterion of thermodynamic stability of the carbocation; the values Of reduction potential show a similar tendency. The stabilization effect of one B C O unit is shown to be much larger than that of two /-butyl groups and even comparable to the effects of two cyclopropyl groups (4).

ACS Symposium Series; American Chemical Society: Washington, DC, 2007. 50 30. Sullivan, P. D. J. Am. Chem. Soc. 1968, 90, 3618. 31. ; Komatsu, K . J. Org. Chem. 2003, 68, 8305. 32. ; Komatsu, K . J. Am. Chem. Soc. 2004, 126, 3163. 33. Hotta, S. In Handbook of Organic Conductive Molecules and Polymers: Nalwa, H . ; Wiley: Chichester, 1997; Vol. 2, Chapter 8. 34. Bäuerle, P. In Electronic Materials: The Oligomeric Approach; Mullen, K . ; Wiley-VCH: Weinheim, 1998; Chapter 2. 35. ; Wiley-VCH: Weinheim 1999.

J. Org. Chem. 2003, 68, 8305. 32. ; Komatsu, K . J. Am. Chem. Soc. 2004, 126, 3163. 33. Hotta, S. In Handbook of Organic Conductive Molecules and Polymers: Nalwa, H . ; Wiley: Chichester, 1997; Vol. 2, Chapter 8. 34. Bäuerle, P. In Electronic Materials: The Oligomeric Approach; Mullen, K . ; Wiley-VCH: Weinheim, 1998; Chapter 2. 35. ; Wiley-VCH: Weinheim 1999. 36. Graf, D. ; Campbell, J. ; Mann, K . ; Miller, L . L . J. Am. Chem. Soc. 1996, 118, 5480. 37. Graf, D. ; Duan, R. ; Campbell, J. ; Miller, L .

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