2-VINYLMETHYLENECYCLOPROPANE 3-METHYLENE REARRANGEMENT - MATRIX-INFRARED SPECTROSCOPIC IDENTIFICATION OF 4-METHYLENE-2-PENTENE-1,5-DIYL(1,2'-BISALLYL DIRADICAL)/

Authors
MAIER G SENGER S
Citation
G. Maier et S. Senger, 2-VINYLMETHYLENECYCLOPROPANE 3-METHYLENE REARRANGEMENT - MATRIX-INFRARED SPECTROSCOPIC IDENTIFICATION OF 4-METHYLENE-2-PENTENE-1,5-DIYL(1,2'-BISALLYL DIRADICAL)/, Journal of the American Chemical Society, 119(25), 1997, pp. 5857-5861
Citations number
18
Categorie Soggetti
Chemistry
Journal title
Journal of the American Chemical Society → ACNP
ISSN journal
00027863
Volume
119
Issue
25
Year of publication
1997
Pages
5857 - 5861
Database
ISI
SICI code
0002-7863(1997)119:25<5857:23R-M>2.0.ZU;2-S
Abstract
triplet-4-Methylene-2-pentene-1,5-diyl (T-4t) has been generated upon irradiation of 2-vinylmethylenecyclopropane (6) in a bromine-doped xen on matrix and characterized by means of IR spectroscopy for the first time. Conclusions for the thermal isomerization of 6 to 3-methylenecyc lopentene (7) are discussed. All experimental results indicate that th is isomerization probably proceeds via the diradical S-4 as an interme diate.