Conversion of norbornene derivatives into vicinal-dithioethers via S8 activation |
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| Authors: | Sophie Poulain Sandy Julien |
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| Affiliation: | a Laboratoire Arômes, Synthèses et Interactions, Faculté des Sciences de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice cedex 2, France
b Laboratoire de Chimie Bioorganique, CNRS, UMR 6001, Faculté des Sciences de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice cedex 2, France |
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| Abstract: | Norbornene reacts with elemental sulfur to give a mixture of trithiolane and pentathiepane. Sulfuration of norbornene derivatives was achieved with elemental sulfur, by using a catalytic amount of a nickel complex, to afford selectively the corresponding trithiolanes. The most effective catalytic system was Ni(NH3)6Cl2 in dimethylformamide. The trithiolanes were reduced with super-hydride into 1,2-dithiolate salts, and quenched in situ to form vicinal-dithioethers. |
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| Keywords: | Norbornene Elemental sulfur Trithiolane Nickel catalysis Dithioethers |
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