Tetrahedron p. 7767 - 7774 (1991)
Update date:2022-08-05
Topics:
Tellier, Frederique
Descoins, Charles
Sauvetre, Raymond
A one-pot sterospecific synthesis of 1,5-dien-3-ynes (Z) or (E) is described, based upon a palladium-catalyzed cross-coupling reaction between butenynylzinc bromide, generated in situ from 1,1-difluoroethylene, and an adequate iodoalkene.These dienynes are converted into the corresponding trienic compounds by (Z) semi-hydrogenation.
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