Palladium-Catalyzed Coupling of Biphenyl-2-yl Trifluoromethanesulfonates with Dibromomethane to Access Fluorenes
作者:Yanghui Zhang、Shulei Pan、Qiongqiong Zhu
DOI:10.1055/a-1770-1078
日期:2022.11
A facile and efficient method has been developed for the synthesis of fluorenes by Pd-catalyzed C–H alkylation of biphenyl-2-yl trifluoromethanesulfonates. The trifluoromethanesulfonates are more readily available and more environmentally benign than biphenyl iodides, and are advantageous substrates for traceless directing-group-assisted C–H activation. The reaction generates C,C-palladacycles as the
[EN] AROMATIC COMPOUNDS HAVING SPHINGOSINE-1-PHOSPHONATE (S1P) RECEPTOR ACTIVITY<br/>[FR] COMPOSÉS AROMATIQUES AYANT UNE ACTIVITÉ DE RÉCEPTEUR DE SPHINGOSINE-1-PHOSPHONATE (S1P)
申请人:ALLERGAN INC
公开号:WO2011143332A1
公开(公告)日:2011-11-17
Novel aromatic compounds which are useful as sphingosine-1-phosphate modulators and useful for treating a wide variety of disorders associated with modulation of sphingosine-1-phosphate receptors.