Issue 30, 2012

Self-assembled NiO–ZrO2nanocrystals with mesoscopic void space: An efficient and green catalyst for C–S cross-coupling reaction in water

Abstract

New NiO–ZrO2 nanocrystals (MNZ-1) with mesoscopic self-assembly have been synthesized by using a non-ionic surfactant as the structure directing agent (SDA) via evaporation induced self-assembly (EISA) method. Powder X-ray diffraction (PXRD), N2 sorption study and transmission electron microscopic (TEM) image analyses revealed the cubic structure, mesoporosity and mesoscopic self-assembly of ca. 7.0 nm sized tiny nanocrystals in the material. MNZ-1 catalyzes the aerobic aryl–sulfur cross-coupling reactions for a series of aryl-iodides with 4-chlorothiophenol in environment friendly water medium at elevated as well as room temperature. Pure ZrO2 mesoporous nanocrystals are inactive, whereas pure NiO nanocrystals showed much lower catalytic activity under similar reaction conditions. The MNZ-1 nanocatalyst is completely non-air sensitive, inexpensive and effective for the synthesis of a series of essential biomolecules derived from diaryl sulfides.

Graphical abstract: Self-assembled NiO–ZrO2 nanocrystals with mesoscopic void space: An efficient and green catalyst for C–S cross-coupling reaction in water

Supplementary files

Article information

Article type
Paper
Submitted
15 Feb 2012
Accepted
12 Apr 2012
First published
17 Apr 2012

Dalton Trans., 2012,41, 9161-9169

Self-assembled NiO–ZrO2 nanocrystals with mesoscopic void space: An efficient and green catalyst for C–S cross-coupling reaction in water

N. Pal and A. Bhaumik, Dalton Trans., 2012, 41, 9161 DOI: 10.1039/C2DT30343D

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