A Tetraarylpyrrole‐Based Phosphine Ligand for the Palladium‐Catalyzed Amination of Aryl Chlorides
作者:Masahiro Sai
DOI:10.1002/adsc.202100731
日期:2021.12.21
A tetraarylpyrrole-based phosphine ligand L1 in combination with Pd(dba)2 provided a catalyst for the Buchwald-Hartwig amination reaction. A variety of amines were rapidly coupled with aryl chlorides at a Pd loading of 0.5 mol%. The selective monoarylation of aliphatic primary amines was achieved in the presence of 0.8 equiv. water. Comparison experiments were also conducted, which revealed that the
Silver-Catalyzed Intramolecular Chloroamination of Allenes: Easy Access to Functionalized 3-Pyrroline and Pyrrole Derivatives
作者:Masahiro Sai、Seijiro Matsubara
DOI:10.1021/ol201895s
日期:2011.9.2
A 1,10-phenanthroline-ligated cationic silver complex allows the intramolecular chloroamination of allenes with N-chlorosuccinimide using 2,6-lutidine as a base. This process proceeds under mild conditions and can tolerate a variety of functional groups. The chloroamination products are useful synthetic intermediates and can be easily transformed into functionalized 3-pyrroline and pyrrole derivatives