20679-59-8Relevant articles and documents
REGIOSPEZIFISCHES UMLAGERUNGSVERHALTEN BUTADIENYL- UND VINYLSUBSTITUIERTER CYCLOPRPILYDENE
Fleischhauer, Ilona,Brinker, Udo H.
, p. 3205 - 3208 (1983)
The reaction of the mono- and bis-dibromocarbene adducts of trans- and cis-hexatriene with methyllithium proceed regiospecifically.The results are supported by labelling (12C > 99.95percent) experiments.
Tautomerization energetics of benzoannelated toluenes
Bartmess, John E.,Griffith, Sharon S.
, p. 2931 - 2936 (2007/10/02)
The energy of tautomerization of some isotoluene structures has been measured by gas-phase ion/molecule reactions and by solution calorimetry. Benzoannelation appreciably destabilizes the aromatic tautomer, relative to the isotoluene form. An inverse saturation effect on the acidities of toluene, 1 -methylnaphthalene, and 9-methylanthracene is observed. The p-isotoluene 3-methylene-1,4-cyclohexadiene appears to have the weakest C-H bond dissociation energy known, 64 ± 3 kcal/mol. Molecular orbital calculations bear out these results.
Absorption Spectra and Photochemical Rearrangements of Alkyl- and Dialkylbenzene Cations in Solid Argon
Kelsall, Benuel J.,Andrews, Lester
, p. 5893 - 5898 (2007/10/02)
Matrix photoionization of alkyl- and dialkylbenzenes produced and trapped the parent radical cations.Irradiation in the visible parent cation absorption induced α-H transfer to the cation ring to give substituted methylenecyclohexadiene cations.The ease of 1,3-hydrogen transfer in these experiments suggests that this may be an important rearrangement in gaseous alkylbenzene cations.Subsequent ultraviolet photolysis of these samples produced substituted styrene cations.