Thermal cycloaddition reactions of 3-bromo-1,5-azulenequinone and 3-bromo-1,7-azulenequinone with benzo[c]furan
β Scribed by Hitoshi Takeshita; Yong Zhe Yan; Nobuo Kato; Akira Mori; Tetsuo Nozoe
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- French
- Weight
- 217 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Nucleophilic substitution of 5-bromotriazoloisoquinoline (3) and of 7-bromo-3-methyltriazolopyridine (6) proceeds readily to give a range of 5-substituted triazoloisoquinolines (4a)-(4e), and of 7-substituted triazolopyridines (7a)-(7h) respectively. Triazoloisoquinolines have been converted into 1,
In preceding articles',2, we have described stereoselective syntheses of nitropyrazolines by 1,3-dipolar cycloaddition of diazoalkanes to sugar nitro-olefins having the n-galacto and D-manno configurations. We now report the preparation of two new sugar nitro-olefins (5 and 6) bearing bromine as ano