| Autor: |
Hamish McNab, Andrew Brown, J. I. G. Cadogan, Andrew D. MacPherson |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
ARKIVOC, Vol 2007, Iss 11, Pp 64-72 (2006) |
| ISSN: |
1551-7012 |
| DOI: |
10.3998/ark.5550190.0008.b06 |
| Popis: |
Flash vacuum pyrolysis (FVP) of 3-[2-(t-butylthio)phenyl]propenoate 7 at 700 °C (0.01 Torr) unexpectedly gave a mixture of benzo[b]thiophene derivatives 5 (15%) and 8 (21%), and thiocoumarin 9 (28%). Control experiments show that thiophenoxyls (e.g. 15) cyclise efficiently to benzo[b]thiophene 5 under similar conditions. It follows that FVP of S-t-butyl derivatives of thiophenols, is not an efficient means of generating thiophenoxyl radicals owing to competing hydrogen capture processes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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