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Synthesis of Dihydropyrano[3,2-c]pyrazoles via Double Bond Migration and Ring-Closing Metathesis

Three types of pyrazole-fused heterobicycles, i.e., 1,5-, 1,7-, and 2,5-dihydropyrano[3,2-c]pyrazoles, were synthesized from 4-allyloxy-1H-pyrazoles. A sequence of the Claisen rearrangement of 4-allyloxy-1H-pyrazoles, ruthenium-hydride-catalyzed double bond migration, O-allylation, and ring-closing...

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Detalhes bibliográficos
Publicado no:Molecules
Main Authors: Usami, Yoshihide, Sumimoto, Kodai, Kishima, Azusa, Tatsui, Yuya, Yoneyama, Hiroki, Harusawa, Shinya
Formato: Artigo
Idioma:Inglês
Publicado em: MDPI 2019
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC6359453/
https://ncbi.nlm.nih.gov/pubmed/30650589
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3390/molecules24020296
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