Structural and coordination properties of 1,2-bis(cyclopropyl)-3,4-bis(2,4,6-tri-tert-butylphenyl)-3,4-diphosphinidenecyclobutene prepared by dehydrogenative homocoupling of 3-cyclopropyl-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaallene
作者:Shigekazu Ito、Matthias Freytag、Masaaki Yoshifuji
DOI:10.1039/b510432g
日期:——
recently established, 3-cyclopropyl-1-(2,4,6-tri-tert-butylphenyl)-1-phosphallene was obtained from (Z)-2-bromo-3-cyclopropyl-1-(2,4,6-tri-tert-butylphenyl)-1-phosphapropene. A novel bidentate ligand, 1,2-bis(cyclopropyl)-3,4-bis(2,4,6-tri-tert-butylphenyl)-3,4-diphosphinidenecyclobutene, was prepared by oxidative homocoupling of 3-cyclopropyl-1-(2,4,6-tri-tert-butylphenyl)-1-phosphaallene in the presence
根据用于我们最近建立的phosphaallenes的合成的一个协议,-1- 3-环丙基(2,4,6-三-叔丁基苯基),由(获得-1- phosphallene Ž)-2-溴-3-环丙基-1-(2,4,6-三-叔丁基苯基)-1- phosphapropene。新颖的二齿配体,1,2-二(环丙基)-3,4-二(2,4,6-三-叔丁基苯基)-3,4- diphosphinidenecyclobutene,由(3-环丙基-1-氧化自偶联2制备的4,6-三-叔丁基苯基)-1- phosphaallene在存在丁基锂,并产生氢气。这1,2-双(环丙基)-3,4-二亚膦基环丁烯 被允许与(tht)AuCl(tht = 四氢噻吩),得到含有P C–C P骨架的六元金属环的相应digold(I)配合物。通过以下方法明确确定了2-溴-3-环丙基-1-磷丙烯,1,2-双(环丙基)-3,4-二膦亚基环丁烯和二甲双胍配合物的分子结构。X射线晶体学