Flash vacuum pyrolysis of 1,2-benzoisothiazole 1,1-dioxides. Benzoxazole and benzonitrile formation
β Scribed by Abramovitch, Rudolph A.; Wake, Shigeo
- Book ID
- 111950532
- Publisher
- The Royal Society of Chemistry
- Year
- 1977
- Tongue
- English
- Weight
- 144 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0022-4936
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Flash vacuum pyrolysis (FVP) of 1-(2-arylhydrazono)-1-(1H-1,2,4-triazol-1-yl)acetone 8a-c at 650Β°C and 2.67 Pa yielded 5-substituted 1-(1H-indazol-3-yl)ethanone 14a-c and 4,6-disubstituted cinnoline 18a-c. Similarly FVP of 1-(1H-benzo[d]imidazol-1-yl)-1-(2-phenylhydrazono)acetone 9a-c gave 8Hbenzo[4
pyrolysis of g-substituted benzylidene chlorides is shown to be a usefu2 route to l-ehtoro-benzocyclobutene, anthacene or benzofurans; evidence is given for a carbene intermediate in the pyrolysis of omethoxybenzyZidene chloride.
## 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