THERMOLYTIC TRANSFORMATIONS OF POLYFLUOROORGANIC COMPOUNDS .30. COPYROLYSIS OF ALPHA,ALPHA-DICHLOROOCTAFLUOROETHYLBENZENE WITH TETRAFLUOROETHYLENE

Citation
Kv. Dvornikova et al., THERMOLYTIC TRANSFORMATIONS OF POLYFLUOROORGANIC COMPOUNDS .30. COPYROLYSIS OF ALPHA,ALPHA-DICHLOROOCTAFLUOROETHYLBENZENE WITH TETRAFLUOROETHYLENE, Russian chemical bulletin, 42(10), 1993, pp. 1690-1693
Citations number
9
Categorie Soggetti
Chemistry
Journal title
ISSN journal
10665285
Volume
42
Issue
10
Year of publication
1993
Pages
1690 - 1693
Database
ISI
SICI code
1066-5285(1993)42:10<1690:TTOPC.>2.0.ZU;2-4
Abstract
The reaction of alpha,alpha-dichlorooctafluoroethylbenzene with tetraf luoroethylene as a source of difluorocarbene has been studied. The cop yrolysis of these compounds gave not only the expected products, decaf luoro-alpha-methylstyrene and alpha-chloroheptafluorostyrene, but also noticeable amounts of perfluoro-1-methylindan and perfluoro-7-methylb icyclo[4.3.0]nona-1,4,6-triene along with perfluoro-3-methylindene and octafluorostyrene. It has been suggested that indan and the triene ar e formed with the participation of the C6F5CClCF3 radical through sigm atropic shifts of fluorine atoms in the intermediate bicyclic compound s. The reaction of alpha,alpha-dichlorodecafluoropropylbenzene with te trafluoroethylene afforded alpha-chloroheptafluorostyrene as the main product.