Synthesis of Unsymmetrical Arylheteroarylmethanes by Direct “On Water” Cross-Coupling between Benzylic and Heteroaromatic Halides
作者:Valeria Krasovskaya、Arkady Krasovskiy、Bruce H. Lipshutz
DOI:10.1002/asia.201100153
日期:2011.8.1
Walking on water: Pharmacologically important unsymmetricalarylheteroarylmethanes are prepared by simple palladium‐catalyzed zinc‐mediated Negishi‐like cross‐couplings in good yields. This reaction tolerates various benzylic chlorides and heteroaromatic bromides “on water” and at room temperature.
Oxidative nucleophilic substitution: transformation of alkylboronic derivatives
作者:Clément Cazorla、Estelle Métay、Marc Lemaire
DOI:10.1016/j.tet.2011.09.055
日期:2011.11
An efficient amidation reaction is described in this paper. Potassium alkyltrifluoroboratesalts can be transforming to amides from nitriles in the presence of copper acetate and boron trifluoride. An extension of this reaction allowed the formation of amines, ethers, and C–C bond.