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Addition and cyclization reactions in the thermal conversion of hydrocarbons with enyne structure, II. Analysis of radicals and carbenes from ethynylbenzene

✍ Scribed by Guthier, Klaus ;Hebgen, Peter ;Homann, Klaus-Heinrich ;Hofmann, Jörg ;Zimmermann, Gerhard

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
753 KB
Volume
1995
Category
Article
ISSN
0947-3440

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✦ Synopsis

The pyrolysis of ethynylbenzene (1) in helium was studied in a tubular flow reactor at 10.7 mbar/103O0C and reaction times ranging from 5 to 30 ms. Reactive intermediates such as radicals and carbenes were scavenged with dimethyl disulfide (DMDS). Qualitative and quantitative analysis of the scavenging products and of the stable pyrolysis products were carried out by GC-MS analysis. -The radicals phenyl

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