97066-32-5Relevant academic research and scientific papers
A fluoride-sensing receptor based on 2,2′-bis(indolyl)methane by dual-function of colorimetry and fluorescence
Wei, Wei,Shao, Shi Jun,Guo, Yong
, p. 531 - 535 (2015)
A compound based on 2,2′-bis(indolyl)methane containing nitro group was studied as a new anion receptor. It could recognize selectively F- by an increasing fluorescence signal and a visible color change from colorless to blue. The introduction of nitro group induced the spectral dual-function related to the deprotonation of N-H protons.
Synthesis of bis(indolyl)methanes under dry grinding conditions, promoted by a Lewis acid-surfactant-SiO2-combined nanocatalyst
Wu, Zhiqiang,Wang, Gang,Yuan, Shuo,Wu, Dan,Liu, Wanyi,Ma, Baojun,Bi, Shuxian,Zhan, Haijuan,Chen, Xiaoyan
supporting information, p. 3542 - 3546 (2019/07/10)
An in situ developed Lewis acid-surfactant-SiO2-combined (LASSC) nanocatalyst was used, for the first time, as a green and effective promoting medium for the electrophilic activation of aldehydes under solvent-free and dry grinding conditions. The advantages of using the LASSC nanocatalyst include avoiding the generation of wastewater containing sodium dodecyl sulfate and the use of toxic reagents, excellent reusability of the catalyst, and obtaining a high yield of bis(indolyl)methanes.
Synthesis of aryl/alkyl(2,2′-bis-3-methylindolyl)methanes and aryl(3,3′-bis indolyl)methanes promoted by secondary amine based ionic liquids and microwave irradiation
Das, Pranab J.,Das, Jupitara
experimental part, p. 4718 - 4720 (2012/09/21)
Aryl/alkyl(2,2′-bis-3-methylindolyl)methanes and aryl(bis-3,3′- indolyl)methanes are synthesized in high yield using ionic liquids mediated by microwave. Reaction conditions and product recovery are simple and ionic liquids could be recycled.
REACTION PATHS AND NEW MECHANISTIC ASPECTS OF THE PROTON-CATALYZED REACTION OF 3-ALKYLINDOLES WITH ARYLALDEHYDES
Dittmann, Klaus,Pindur, Ulf
, p. 1079 - 1093 (2007/10/02)
The mechanism of the proton-catalyzed reaction of 3-alkylindoles with arylaldehydes is elucidated by the isolation of stable intermediates and products, and by the selective control of their transformations in the course of reaction.The aldehyde electrophile attacks at N1, C2 and C3 on the indole enamine structure with the temperature, the reaction time and the proton concentration controlling the relative quantities and distribution of products.It was established indirectly that an ipso-attack by intermediary cations with iminium and indolenine structure takes placeat the 3- position of 3-alkylated indoles.This was made possible by the isolation of hitherto unknown tetrahydropyrrolodiindoles 14, 17.These compounds should be formed from intermediary indolylmethyl-indoleninium ions 13, 11, which are trapped by stereoelectronic controlled intramolecular cyclization.
