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Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

✍ Scribed by Valentine P. Ananikov; Konstantin A. Gayduk; Irina P. Beletskaya; Victor N. Khrustalev; Mikhail Yu. Antipin

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 887 KB
Volume: 2009
Category: Article
ISSN: 1434-1948
DOI: 10.1002/ejic.200800984

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✦ Synopsis

Abstract

Catalyst leaching from Pd and Ni particles stabilized by organic sulfur and selenium ligands occurs in solution in the presence of phosphanes. This process has been monitored in real time by 1D and 2D NMR spectroscopy and the nature of the metal species established. This catalyst leaching is shown to be a powerful tool for generating new catalytic activity from species formed in situ where the parent bulk particles are inactive. The catalytic system developed has been successfully implemented in a novel synthetic procedure that provides new types of cyclic sulfur and selenium compounds in high yields through the reaction between alkynes and dichalcogenides. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides (Eur. J. Inorg. Chem. 9/2009)

✍ Valentine P. Ananikov; Konstantin A. Gayduk; Irina P. Beletskaya; Victor N. Khru 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 955 KB

## Abstract **The cover picture shows** the impact of the phosphane ligand on solid metal nanoparticles, which initiates transformation of the metal species into a high‐performance catalyst. The evolution of the transition‐metal complexes was monitored by NMR spectroscopy, and the active form of th