Abstract
Abstract The efficient cross-coupling reactions of different alkynyl organozinc reagents with unsaturated organotellurium species catalyzed by Pd(PPh3)4/CuI and using THF/DMF systems are described. These cross-coupling reactions are general and permit the formation of new sp–sp 2 carbon–carbon bonds. New reactions to reach the necessary alkynylzinc intermediates were also developed from terminal alkynes or using acetylenic tellurides as starting materials.
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