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Oligo(metallocene)s Containing Keto‐Bridged Phospholyl Rings
Author(s) -
Carmichael Duncan,
le Goff XavierFrédéric,
Muller Eric
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201301144
Subject(s) - chemistry , stereochemistry , tris , ligand (biochemistry) , elaboration , chirality (physics) , metallocene , bridging ligand , crystallography , medicinal chemistry , combinatorial chemistry , crystal structure , organic chemistry , polymerization , receptor , polymer , philosophy , biochemistry , humanities , chiral symmetry breaking , physics , quantum mechanics , nambu–jona lasinio model , quark
A chiral racemic tris(phosphaferrocene) complex showing two bridging keto functionalities has been prepared diastereoselectively through the elaboration of a single 2,5‐diester‐substituted phosphaferrocene. The reaction profile involves the intervention of a single trinuclear complex, which contains two phosphametallocene units and an η 1 ‐coordinated phospholyl ligand 9 , whose organisation determines the stereochemistry of the final product. This complex evolves smoothly to give a chiral triphosphametallocene (±)‐( R *, R *)‐[2,5‐(2′‐CO 2 Me‐3′,4′‐Me 2 PC 4 ‐FeCp*)‐(η 5 ‐Me 2 PC 4 )FeCp*] 10 .