2367-17-1Relevant articles and documents
SBA-15-Pr-SO3H catalyzed one-pot synthesis of indole derivatives via Fischer indole pathway
Ghiyasabadi, Zahra,Bahadorikhalili, Saeed,Saeedi, Mina,Karimi-Niyazagheh, Mona,Mirfazli, Seyedeh Sara
, p. 606 - 610 (2020)
In this work, an efficient, user-friendly, and simple procedure was reported for the preparation of indole derivatives catalyzed by the heterogeneous SBA-15-Pr-SO3H via Fischer indole pathway. The title compounds were synthesized from various arylhydrazines and ketones in the presence of 3 mol% of the catalyst in the refluxing ethanol.
Tetrahydrocarbazoles by mechanochemical Fischer indolisation
Qiu, Yichen,Puni, Kararaina Te,Duplan, Clotilde C.,Lindsay, Ashley C.,Sperry, Jonathan
supporting information, (2021/05/26)
The Fischer indolisation (FI) typically proceeds in the presence of a Br?nsted or Lewis acid in an organic solvent at elevated temperatures. Herein, we report that tetrahydrocarbazoles (THCs) are accessible by mechanochemical FI at ambient temperature. Using phenylhydrazine hydrochlorides in the presence of silica is critical for this solid-state variant of the FI.
PYRIDINE BASED IONIC FLUORIDE FOR CATALYZING INDOLE AND TETRAZOLE FORMATION
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Paragraph 0031; 0115; 0116; 0118, (2020/01/02)
A pyridine based ionic liquid with a fluoride counter anion which catalyzes Fischer indole reaction and click chemistry. Methods of preparing the ionic liquid, and methods of utilizing the ionic liquid as a catalyst to synthesize indoles/indolenines and tetrazoles are also provided.