Flow-vacuum pyrolysis of polycyclic compounds. 13. Pyrolysis of 5H-6,7-dihydrodibenzo[a,c]cycloheptene

Authors
Banciu, MD Parvulescu, L Draghici, C Mihaiescu, D Costea, C
Citation
Md. Banciu et al., Flow-vacuum pyrolysis of polycyclic compounds. 13. Pyrolysis of 5H-6,7-dihydrodibenzo[a,c]cycloheptene, REV RO CHIM, 44(5), 1999, pp. 461-465
Citations number
12
Categorie Soggetti
Chemistry
Journal title
REVUE ROUMAINE DE CHIMIE
ISSN journal
00353930 → ACNP
Volume
44
Issue
5
Year of publication
1999
Pages
461 - 465
Database
ISI
SICI code
0035-3930(199905)44:5<461:FPOPC1>2.0.ZU;2-Q
Abstract
Flow-vacuum pyrolysis of title hydrocarbon affords at temperatures above 90 0 degrees C (1 mm Hg) mixtures of phenanthrene (main product) and 9-methylp henanthrene and fluorene (minor products). The suggested reaction mechanism includes two parallel routes, one generating phenanthrene and 9-methylphen anthrene via radical transformations and the other producing fluorene via a concerted [2 + 2 + 2] reaction.