A Sulfonic Acid Polyvinyl Pyridinium Ionic Liquid Catalyzes the Multi-Component Synthesis of Spiro-indoline-3,5′-pyrano[2,3-d]-pyrimidines and -Pyrazines

A sulfonated poly-4-vinyl pyridinium (PVPy-IL-B-SO3H) containing an acidic pyridinium/HSO3− ionic liquid moiety was prepared and used as a catalyst for the three-component reaction of malononitrile with 1-alkylindoline-2,3-diones and 1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione or methyl 5-hydroxy-...

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Vydané v:	Molecules (Basel, Switzerland) Ročník 28; číslo 9; s. 3663
Hlavní autori:	Khalaj, Mehdi, Taherkhani, Mahboubeh, Payen, Leo, Klein, Axel
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Switzerland MDPI AG 23.04.2023 MDPI
Predmet:	Chromatography polymeric ionic liquid Polymers polyvinyl pyridine Pyrimidines Solvents spiro-indoline-3,4′-pyrano[2,3-c]pyrazole spiro-indoline-3,5′-pyrano[2,3-d]pyrimidine Sulfuric acid ultrasonic Germany United States > US spiro-indoline-3,5′-pyrano[2,3-d]pyrimidine spiro-indoline-3,4′-pyrano[2,3-c]pyrazole polymeric ionic liquid ultrasonic polyvinyl pyridine
ISSN:	1420-3049, 1420-3049
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