BENZOANNELATED VALENCE ISOMERS OF HOMOANNULENES .2. THERMAL-BEHAVIOR OF DIBENZO[B,F]BICYCLO[6.1.0]NONA-2,4,6-TRIENE

Authors
BANCIU A PETRIDE A DRAGHICI C BANCIU MD
Citation
A. Banciu et al., BENZOANNELATED VALENCE ISOMERS OF HOMOANNULENES .2. THERMAL-BEHAVIOR OF DIBENZO[B,F]BICYCLO[6.1.0]NONA-2,4,6-TRIENE, Revue Roumaine de Chimie, 38(10), 1993, pp. 1205-1213
Citations number
33
Categorie Soggetti
Chemistry
Journal title
Revue Roumaine de Chimie → ACNP
ISSN journal
00353930
Volume
38
Issue
10
Year of publication
1993
Pages
1205 - 1213
Database
ISI
SICI code
0035-3930(1993)38:10<1205:BVIOH.>2.0.ZU;2-W
Abstract
The flow-vacuum pyrolysis of the title dibenzo (C9H10) hydrocarbon 3 w as investigated between 400-650-degrees-C and 1 Torr. The main reactio n product, 11, 11a-dihydro-6aH-benzo[a]fluorene (5) was isolated and c haracterized. At elevated temperatures 5 is converted into a mixture o f 6,11-dihydro-5H-benzo[a]fluorene (6) and 11H-benzo[a]fluorene (7). A reaction mechanism for pyrolysis is suggested and a comparison betwee n the thermal behaviour of 3 and of some related hydrocarbons is made.