Palladium(ii)-catalyzed coupling reactions with a chelating vinyl ether and arylboronic acids: a new Heck/Suzuki domino diarylation reaction
2009
Trejos, Alejandro | Fardost, Ashkan | Yahiaoui, Samir | Larhed, Mats
A mild and novel palladium(ii)-catalyzed domino Heck/Suzuki α,β-diarylation-reduction of a dimethylaminoethyl substituted chelating vinyl ether was developed by using electron-rich arylboronic acids in combination with p-benzoquinone. Based on the preparative results, a catalytic cycle is proposed. Further, highly regioselective palladium(ii)-catalyzed α- or β-monoarylation of the chelating vinyl ether was achieved using either a bidentate ligand or by employing ligand-less conditions.
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