Issue 24, 2017

Cobalt modified N-doped carbon nanotubes for catalytic C[double bond, length as m-dash]C bond formation via dehydrogenative coupling of benzyl alcohols and DMSO

Abstract

The development of heterogeneous, cost-effective and environmentally benign catalysts to construct C[double bond, length as m-dash]C bonds is highly desirable. We report here Co@N-doped carbon nanotubes (Co@NCNT) as a catalyst for a novel synthesis of styryl sulfides via dehydrogenative coupling of benzyl alcohols and DMSO under anaerobic conditions. This reaction maintains high atom efficiency as the C[double bond, length as m-dash]C bond is formed without the cracking of the C–S bond. We proposed that Co modified N-doped carbon sites are the active sites, different from traditionally believed metal centers for dehydrogenative C–C coupling. Moreover, the Co@NCNT catalyst could be easily separated and recycled for at least six runs. This work opens up a new application of metal–N–C catalysts in C[double bond, length as m-dash]C bond-forming reactions in synthetic chemistry.

Graphical abstract: Cobalt modified N-doped carbon nanotubes for catalytic C [[double bond, length as m-dash]] C bond formation via dehydrogenative coupling of benzyl alcohols and DMSO

Supplementary files

Article information

Article type
Communication
Submitted
01 Aug 2017
Accepted
10 Nov 2017
First published
10 Nov 2017

Green Chem., 2017,19, 5782-5788

Cobalt modified N-doped carbon nanotubes for catalytic C[double bond, length as m-dash]C bond formation via dehydrogenative coupling of benzyl alcohols and DMSO

J. Li, G. Liu, L. Shi, Q. Xing and F. Li, Green Chem., 2017, 19, 5782 DOI: 10.1039/C7GC02335A

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