A Modified Procedure for the Synthesis of 1-Arylimidazoles
作者:Hongbin Zhang、Jingping Liu、Jingbo Chen、Jingfeng Zhao、Yuanhong Zhao、Liang Li
DOI:10.1055/s-2003-42444
日期:——
A convenient modified process for the synthesis of 1-aromatic substituted imidazoles is provided. The protocol generally affords better yields of the sterically hindered 1-arylimidazoles.
Highly Stereoselective Synthesis of Imine‐Containing Dibenzo[
<i>b</i>
,
<i>d</i>
]azepines by a Palladium(II)‐Catalyzed [5+2] Oxidative Annulation of
<i>o</i>
‐Arylanilines with Alkynes
A novel palladium(II)‐catalyzed [5+2] oxidativeannulation of readily available o‐arylanilines with alkynes has been developed for building a seven‐membered N‐heterocyclic architecture containing a biaryl linkage. This method is applicable to a wide range of unprotected o‐arylanilines and internal alkynes, and results in the chemoselective preparation of imine‐containingdibenzo[b,d]azepines in high