2,6-Diaryl-pyridinecarboxylic acids and their therapeutic utility
申请人:THE UPJOHN COMPANY
公开号:EP0064385B1
公开(公告)日:1986-04-02
US4377586A
申请人:——
公开号:US4377586A
公开(公告)日:1983-03-22
US4474791A
申请人:——
公开号:US4474791A
公开(公告)日:1984-10-02
Direct arylation of azine N-oxides with aryl triflates
作者:Derek J. Schipper、Mohamed El-Salfiti、Christopher J. Whipp、Keith Fagnou
DOI:10.1016/j.tet.2009.03.077
日期:2009.6
Palladium catalyzed direct arylation of azine N-oxides using aryltriflates to afford the corresponding 2-aryl azine N-oxides is described. The reaction is carried out with a range of both N-oxides and aryltriflates. The arylation can be carried out in sequence to yield differentially diarylated products. The regioselectivity and scope of 3-substituted azine N-oxides are investigated. The method is