Efficient palladium-catalyzed synthesis of unsymmetrical donor—acceptor biaryls and polyaryls
作者:Christian Amatore、Anny Jutand、Serge Negri、Jean-Francois Fauvarque
DOI:10.1016/0022-328x(90)85107-a
日期:1990.7
method from commercially available aromatic halides has been used for the synthesis of a series of donor/acceptor para-substituted biphenyls, DC6H4C6H4A, where D is an electron donor group and A an electron acceptor group, which are of interest as liquid crystal precursors and as having potential in non-linear optics. Biaryls in which the donor-phenyl moiety is replaced by a 2-furyl or 2-thienyl can
可以通过取代的芳族有机金属试剂与钯配合物催化的芳族卤化物的交叉偶联反应合成4,4'-不对称取代的联苯。这种两步由市售的芳香族卤化物的方法已被用于一系列供体的合成/受体对-取代的联苯,DC 6 ħ 4 C 6 ħ 4A,其中D是电子给体基团,A是电子受体基团,它们作为液晶前体并在非线性光学中具有潜力。可以类似地合成其中供体-苯基部分被2-呋喃基或2-噻吩基取代的联芳基。该方法还可用于以前未报道的不对称取代的聚对亚苯基(n = 3,4)的收敛合成。