1,3,5-Triferrocenyl-2,4,6-tris(ethynylferrocenyl)-benzene – a new member of the family of multiferrocenyl-functionalized cyclic systems
作者:Ulrike Pfaff、Grzegorz Filipczyk、Alexander Hildebrandt、Marcus Korb、Heinrich Lang
DOI:10.1039/c4dt02307b
日期:——
with FcZnCl (5) in the presence of catalytic amounts of [Pd(CH2C(CH3)2P(tC4H9)2)(μ-Cl)]2 gave 1,3-Cl2-5-Fc-2,4,6-(FcCC)3-C6 (6a), 1-Cl-3,5-Fc2-2,4,6-(FcCC)3-C6 (6b) and 1,3,5-Fc3-2,4,6-(FcCC)3-C6 (6c) of which 6b is the main product. Column chromatography allowed the separation of these organometallic species. The structures of 4a,b and 6a in the solid state were determined by single crystal X-ray diffractometry
1,3,5-三铁茂铁基-2,4,6-三(乙炔基二茂铁基)苯(6c)的连续合成是使用1,3,5-Cl 3 -2,4,6-I 3 -C 6(2)作为起始化合物。随后的Sonogashira Ç,Ç交叉耦合的2与FCC CH(3中的摩尔比为1):得到仅1,3,5-CL 4 3 -2,4,6-(FCC C)3 -C 6(图4c)(FC =铁(η 5 -C 5 H ^ 4)(η 5 -C 5 H ^ 5))。但是,当2以1:3的比例与3反应时,会形成1,3,5-Cl 3 -2-(FcC C)-4,6 -I 2 -C 6(4a)和1,3的混合物,得到5-Cl 3 -2,4-(FcC C)2 -6-IC 6(4b)。根岸Ç,Ç交叉耦合的4C与FcZnCl(5在催化量的存在下)[将Pd(CH 2 C(CH 3)2 P(吨Ç 4 ħ 9)2)(μ-Cl)的]2得到1,3-Cl 2 -5-Fc-2,4,6-(FcCC)