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A chromatography-free synthesis of bis(indolyl)methanes has been developed using sulfonic acid and sulfonyl hydrazine-functionalized ionic liquids as catalyst and scavenger, respectively. The employed excess aldehyde for completion of the reaction was scavenged by sulfonyl hydrazine-functionalized ionic liquid. Purification of products without column chromatography, ease of monitoring and shorter...
cis-Dioxomolybdenum(VI) complex of 4,6-O-ethylidene-β-d-glucopyranosylamine derived ligand has been used as an efficient catalyst in the selective synthesis of a series of bis(indolyl)methanes (BIMs) by condensing indole derivatives with carbonyl compounds. The adopted synthetic procedure is green in nature as solvent free reactions have been carried out using naturally occurring d-glucose...
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