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Covalently anchored carboxylic acid on uniform spherical silica nanoparticles with narrow slit like mesopores for the synthesis of pyrroloacridinones: CuI-catalyzed further C(sp 3 )-H oxyfunctionalization for CO formation
S RAY, A BHAUMIK, M PRAMANIK,
Published in -
2014
Volume: 4
   
Issue: 30
Pages: 15441 - 15450
Abstract
A new organic-inorganic hybrid catalyst (SMSNP-CA) was prepared by post synthesis grafting of -COOH functionalized organosilane on uniform spherical silica nanoparticles of 600 nm size with narrow slit like mesopores by using surface hydroxyl groups as anchor points. It was characterized by N 2 adsorption analysis, HRTEM, CHN analysis, 13 C CP MAS, 29 Si MAS NMR and FTIR spectroscopy. The nanosilica particles possess unique morphological features. The broad applicability of SMSNP-CA was probed through a library synthesis of highly decorated pyrroloacridinone derivatives in the eco-friendly solvent ethanol. CuI-catalyzed further C (sp 3 )-H oxyfunctionalization leading to CO formation was carried out using O 2 as an environmentally benign and ideal oxidant since water is the only byproduct in these reactions. This journal is © the Partner Organisations 2014.
About the journal
JournalRSC Advances
Publisher-
ISSN2046-2069
Open AccessNo