Synthesis of Coumarins by Flash Vacuum Pyrolysis of3-(2-Hydroxyaryl)propenoic Esters, 1
β Scribed by Cartwright, Gary A.; McNab, Hamish
- Book ID
- 121822645
- Publisher
- Science Reviews 2000 Ltd
- Year
- 1997
- Tongue
- English
- Weight
- 87 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0308-2342
- DOI
- 10.1039/A702405C
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π SIMILAR VOLUMES
The temperature dependence of products formed from flash vacuum pyrolysis (FVP) of 2-mercaptonicotinic acid 4 has been studied. FVP of 4 at 550Β°C and ca. 1Γ10 -2 torr gave pyridothietone 3b and a trimer 5 as the major products. At higher temperature (800Β°C), FVP of 4 gave 2-mercaptopyridine 6 as the
## Abstract Flash vacuum pyrolysis of 1,2βdialkoxybenzenes 1aβc leads to the liberation of alkanes from the interacting side chains. A rearrangement of the skeleton yields the __o__βhydroxy carbonyl compounds 2 and 4. The generation of phenol 3 can be rationalized by a decarbonylation. The latter r