作者:Pascal Le Floch、Duncan Carmichael、Louis Ricard、Francois Mathey
DOI:10.1021/ja00076a027
日期:1993.11
ine gives either 2,6-bis(diphenylphosphino)- or 2-(diphenylphosphino)phosphinines according to the starting materials. In the case of 2,4,6-tribromophosphinines, the ortho selectivity of the functionalizations probably reflects an initial coordination of [PdL 2 ] to the phosphinine phosphorus
[PdL 2 ] -催化(L=三苯基-或三呋喃基膦)2,4,6-三溴-或2,6-二溴膦与R-SnMe 3 衍生物的交叉偶联产生相应的2,6-二-R-膦,其中 R = 2-呋喃基、2-噻吩基、2-N-甲基吡咯基或 C≡C-Ph。当R为2-吡啶基时,仅得到单取代的膦。根据起始材料,2,4,6-三溴-或2-溴膦与(三甲基甲硅烷基)二苯基膦之间的类似交叉偶联反应产生2,6-双(二苯基膦)-或2-(二苯基膦)膦。在 2,4,6-三溴膦的情况下,官能化的邻位选择性可能反映了 [PdL 2 ] 与膦磷的初始配位