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Issue 9, 2018
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A general approach for the formation of oxygen-chelated ruthenium alkylidene complexes relying on the Thorpe–Ingold effect

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Abstract

Ruthenium alkylidene complexes are prepared via enyne ring-closing metathesis relying on the exo and endo gem-dialkyl substituent effect. The structural features stabilizing oxygen-chelates are explored and confirmed by single crystal X-ray diffraction analyses. In stark contrast to the previously reported oxygen chelated Grubbs-type complexes, all chelates prepared through a ring-closing enyne metathesis regime show the disposition of the chelated oxygen and the NHC ligand in cis relationship, which force the two chloride ligands in cis-orientation. The newly synthesized oxygen-chelated ruthenium alkylidene complexes are metathesis active only at elevated temperatures.

Graphical abstract: A general approach for the formation of oxygen-chelated ruthenium alkylidene complexes relying on the Thorpe–Ingold effect

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Publication details

The article was received on 09 Feb 2018, accepted on 17 Mar 2018 and first published on 28 Mar 2018


Article type: Research Article
DOI: 10.1039/C8QO00160J
Citation: Org. Chem. Front., 2018,5, 1532-1536
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    A general approach for the formation of oxygen-chelated ruthenium alkylidene complexes relying on the Thorpe–Ingold effect

    V. R. Sabbasani, S. Gupta, S. Young Yun and D. Lee, Org. Chem. Front., 2018, 5, 1532
    DOI: 10.1039/C8QO00160J

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