The <i>trans</i>-Chlorometalation of Hetero-Substituted Alkynes: A Facile Entry to Unsymmetrical Palladium YCY‘ (Y, Y‘ = NR<sub>2</sub>, PPh<sub>2</sub>, OPPh<sub>2</sub>, and SR) “Pincer” Complexes
作者:Gunter Ebeling、Mario R. Meneghetti、Frank Rominger、Jairton Dupont
DOI:10.1021/om011002a
日期:2002.7.1
species involved in these reactions suggests that the chloropalladation reaction proceeds through the coordination of only one donor group followed by coordination of the C⋮C bond to the metal center. Selective intermolecular chloride nucleophilic addition on this activated unsaturated bond affords the more thermodynamically stable palladacyclic ring. Finally, coordination of the second donor group