239477-34-0Relevant academic research and scientific papers
Synthesis and characterization of planar-chiral cydopentadienyliron complexes (S)- and (R)-{η5-[1-Ph2(OH)C-2-Me-4-PhC5H 2]}Fe(CO)2R (R = C≡CPh, Me, SO2Me)
Katayama, Taku,Morimoto, Yasushi,Yuge, Michiru,Uno, Mitsunari,Takahashi, Shigetoshi
, p. 3087 - 3095 (1999)
The first enantiomerically pure planar-chiral cyclopentadienyliron complexes, (S)- and (R)-η5-CpcFe(CO)2R [Cpc = 1-hydroxydiphenylmethyl-2-methyl-4-phenylcyclopentadienyl; R = C≡CPh (6), Me (8)], in which the locus of chirality is in the cyclopentadienyl center, were synthesized from CpaFe(CO)2I (4a: Cpa = 1-(-)-menthoxycarbonyl-2-methyl-4-phenylcyclopentadienyl) and CpbFe(CO)2I (4b: Cpb = 1-(+)-menthoxycarbonyl-2-methyl-4-phenylcyclopentadienyl) and were isolated as a diastereomerically pure form by fractional recrystallization. The molecular structures of 4a and 4b, including the absolute configuration, have been established by an X-ray crystallographic analysis based on the configuration of the (-)- and (+)-menthyl groups.
