Hochsubstituierte Decabenzylmetallocene: Synthese und Strukturaufklerung von Deca(4-acetylbenzyl)ferrocen Fe5>2

Article abstract of DOI:10.1016/0022-328X(95)05551-Y

Decabenzylferrocene reacts with acetyl chloride in the presence of Al2Cl6 to form Deca(4-acetylbenzyl)ferrocene Fe2 (2).The X-ray structure confirms the all-para-substitution of the ten benzylligands by the acetyl group. 2 crystallizes in the space group P2₁/n with a=1479.8(3) pm, b=1700.9(4) pm, c=1618.7(8) pm, β=89.99(2) deg and V=4074(2)*10^-30 m³.The final refinement resulted in R=0.0936 for 3983 observed reflections with F_o <*> 2?(F_o).Keywords: Iron; Ferrocene; Bulky ligands; Friedel-Crafts-Acylation