Mechanically interlocked nanotubes as recyclable catalysts for Knoevenagel condensation.

ABSTRACT: Single-walled carbon nanotubes (SWNTs) are a very attractive platform to build heterogeneous catalysts, benefiting from their intrinsic high surface area and their insolubility. Here, we show that SWNTs encapsulated within organic macrocycles to form mechanically interlocked rotaxane-type species (MINTs), are a good building block to graft basic nitrogenous moieties for the catalysis of the Knoevenagel condensation. The installation of the catalytically active groups is carried out after formation of the MINTs, following a modular approach. Through this chemical modification strategy, we obtain very active MINT catalysts (TOF in the range of 900-9000 h^-1). The interlocked catalysts can be recycled for at least five times by simple filtration and washing, without any a

SUBMITTER: Vera-Hidalgo M 

PROVIDER: S-EPMC12267540 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature