Preparation, Methylation, and Coupling Reaction of 1,2-Dithienyl-3,4-bis[(2,4,6-tri-<i>t</i>-butylphenyl)phosphinidene]cyclobutenes
作者:Kozo Toyota、Keita Abe、Keiko Horikawa、Masaaki Yoshifuji
DOI:10.1246/bcsj.77.1377
日期:2004.7
Sterically protected 1,2-di(2-thienyl)- and 1,2-di(3-thienyl)-3,4-bis](2,4,6-tri-t-butylphenyl)phosphinidene]cyclo-butenes were prepared and their properties were studied. When the dithienyldiphosphinidenecyclobutenes were allowed to react with butyllithium and then with iodomethane, the corresponding methylthienyl derivatives were obtained. The structure of (E,E)-1,2-bis(5-methyl-3-thienyl-3,4-bis](2
空间保护的 1,2-二(2-噻吩基)-和 1,2-二(3-噻吩基)-3,4-双](2,4,6-三-叔丁基苯基)膦]环丁烯是制备并研究了它们的性质。当二噻吩基二亚膦基环丁烯与丁基锂反应,然后与碘甲烷反应时,得到相应的甲基噻吩基衍生物。(E,E)-1,2-双(5-甲基-3-噻吩基-3,4-双](2,4,6-三叔丁基苯基)亚膦]环丁烯的结构通过X-射线晶体学二噻吩基二亚膦基环丁烯的锂化,然后用CuCl 2 处理,在噻吩环上提供相应的偶联产物。