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Phosphazene bases for the preparation of biaryl thioethers from aryl iodides and arenethiols

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
41
Issue
8
Identifiers
DOI: 10.1016/s0040-4039(99)02269-8

Abstract

Abstract In the presence of phosphazene P 2-Et base as well as 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) the coupling of aryl iodides with arenethiols only requires catalytic amounts of CuBr. Under these conditions the reaction can be performed in refluxing toluene to give biaryl thioethers in excellent yields.

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