Journal
TETRAHEDRON
Volume 65, Issue 36, Pages 7616-7619Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.06.109
Keywords
DMSO radicals; DMF radicals; Radical reactions; Solvent inertness
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So far overlooked DMSO and DMF form long-lived radicals in the presence of small amounts of bases. DMF radicals being less stable than DMSO radicals. In solvent mixtures, the presence of DMSO prolonged the lifetime of DMF radicals. The occurrence of radicals may explain previously reported unexpected outcomes of reactions performed in these solvents. The commonly accepted inertness of these solvents towards minor quantities of alkali seems not to be warranted. (C) 2009 Elsevier Ltd. All rights reserved.
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