Journal
TETRAHEDRON LETTERS
Volume 48, Issue 12, Pages 2113-2116Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.01.119
Keywords
nucleophilic addition; aminotrialkoxysilanes; dithiocarbamates; polyanions; chelates
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A new and mild method was developed for the chemoselective conversion of mono-, his- and tris-ammosiloxanes into their corresponding mono-, his- and tris-dithiocarbamates, using alkaline hydrides and carbon disulfide in THF. Enhanced scavenging capacity towards mercury ions was observed when these compounds were grafted on silica compared to amine-functionalized silicas or to commercial resins bearing dithiocarbamate moieties. (c) 2007 Elsevier Ltd. All rights reserved.
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