Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2007, Issue 21, Pages 3431-3444Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200700119
Keywords
synthetic methods; homogeneous catalysis; heterogeneous catalysis; selectivity; nanosized catalysts
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In the presence of transition metal catalysts, hydrothiolation and hydroselenation reactions, as well as bisthiolation and bisselenation reactions, have been successfully carried out with high selectivities and yields. New transition metal-catalyzed synthetic methods have been developed for the preparation of vinyl sulfides and vinyl selenides of various types. Mechanistic study has revealed that a homogeneous catalytic system based on phosphine complexes of palladium is the best choice for carrying out stereoselective additions of disulfides and diselenides to alkynes. A heterogeneous Ni-catalyzed reaction with a unique self-organized nanostructured catalyst was superior for carrying out regioselective additions of thiols and selenols to alkynes. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
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