Your browser doesn't support javascript.
loading
Multi-Component Syntheses of Spiro[furan-2,3'-indoline]-3-carboxylate Derivatives Using Ionic Liquid Catalysts.
Khalaj, Mehdi; Zarandi, Maryam; Samadi Kazemi, Malihe; Musavi, Seyed Mahmoud; Hohnsen, Johannes; Klein, Axel.
Afiliación
  • Khalaj M; Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 1477893855, Iran.
  • Zarandi M; Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 1477893855, Iran.
  • Samadi Kazemi M; Department of Chemistry, Faculty of Science, Bojnourd Branch, Islamic Azad University, Bojnourd 9417697796, Iran.
  • Musavi SM; Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 1477893855, Iran.
  • Hohnsen J; Faculty of Mathematics and Natural Sciences, Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Köln, Germany.
  • Klein A; Faculty of Mathematics and Natural Sciences, Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Köln, Germany.
Molecules ; 29(6)2024 Mar 08.
Article en En | MEDLINE | ID: mdl-38542860
ABSTRACT
Two previously described Brønsted acidic ionic liquids, 3,3'-(1,6-hexanediyl)bis(1-methyl)-1H-imidazolium hydrogen sulfate (Cat1) and 1,1'-(1,6-hexanediyl)bis(pyridinium) hydrogen sulfate (Cat2), were used as catalysts for the preparation of spiro[furan-2,3'-indoline]-3-carboxylate derivatives via a three-component reaction of anilines, isatins (N-alkyl-indoline-2,3-diones), and diethyl acetylenedicarboxylate, in high yields. The use of ultrasonic (US) irradiation led to the targeted products (1a-15a) in high yields ranging from 80% to 98%. Under the same conditions, the use of sulfuric acid and acetic acid as a Brønstedt catalyst did not yield the desired benchmark product 1a.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Suiza