摘要:
                                A new potentially C-3-symmetric phosphine ligand 'manphos' has been obtained and fully characterized. The ligand which is a triferrocenyl-tetra-phosphine is obtained in a simple and effective two step synthesis starting from 1,1'-dibromoferrocene via the intermediate compound tris-(1'-bromoferrocenyl)phosphine or alternatively via 1'-bromo-1-diphenylphosphinoferrocene. The isopropylphosphino-analogue of manphos, tris-(1'-diisopropylphosphinoferrocenenyl)phosphine, has also been obtained, in addition to several functionalised derivatives of triferrocenylphosphine where the ferrocene rings have been substituted in the 1'-position. (C) 2003 Elsevier B.V. All rights reserved.