Concise One-pot MCRs approach to monofluorinated spiro-pyrazole-pyridine derivatives without additional catalyst

Monofluorinated bis-heterocyclic spirocycles: functionalized ethyl 9-fluoro-8-methyl-1,4-dioxo-2,3,6,10-tetraphenyl-2,3,7-triazaspiro [4.5]dec-7-ene-9-carboxylate derivatives were efficiently synthesized from readily available 1,2-diphenylpyrazolidine-3,5-dione, ethyl 2-fluoroacetoacetate, aromatic aldehyde and ammonium acetate via one-pot four-component reactions in the absence of additional catalyst. In this protocols, ammonium acetate served not only as the fourth component but also as the catalyst. The structures of product were determined by spectral methods and X-ray diffraction analysis.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Concise One-pot MCRs approach to monofluorinated spiro-pyrazole-pyridine derivatives without additional catalyst ; day:01 ; month:06 ; year:2022
SynOpen ; (01.06.2022)

Beteiligte Personen und Organisationen
Liu, Ying
Zhang, Yiping
Zhou, Yingkai
Zhang, Min
Deng, Hongmei
Song, Liping

DOI
10.1055/a-1866-4653
URN
urn:nbn:de:101:1-2022071412423902891249
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
2025-08-15T07:24:53+0200

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Beteiligte

  • Liu, Ying
  • Zhang, Yiping
  • Zhou, Yingkai
  • Zhang, Min
  • Deng, Hongmei
  • Song, Liping

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