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Transannular Anti-Michael Addition: Formation of 4H-Pyrazolo[5,1-c]thiazines
The reaction of 2-(diphenylmethylene)thietan-3-one (2) with 1,2,4,5-tetrazines (3a–c) in KOH/MeOH/THF gives 4H-pyrazolo[5,1-c]thiazines (7a–c). This no vel condensation reaction proceeds via the intermediacy of an 8-(diphenylmethylene)-2H-1,4,5-thiadiazocin-7(8H)-one (5), which undergoes a multi-ste...
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| Main Authors: | , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2006
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3167077/ https://ncbi.nlm.nih.gov/pubmed/21904417 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.tetlet.2006.09.015 |
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