SYNTHESIS AND CHARACTERIZATION OF TRICARBONYL(TRIMETHYLENEMETHANE)IRON COMPLEXES - CRYSTAL-STRUCTURE OF LENE-6-P-NITROBENZOYLOXY-HEPTAN-1,3-DIYL)FE(CO)(3)
Wa. Donaldson et al., SYNTHESIS AND CHARACTERIZATION OF TRICARBONYL(TRIMETHYLENEMETHANE)IRON COMPLEXES - CRYSTAL-STRUCTURE OF LENE-6-P-NITROBENZOYLOXY-HEPTAN-1,3-DIYL)FE(CO)(3), Transition metal chemistry, 22(6), 1997, pp. 592-596
A series of substituted tricarbonyl(trimethylenemethane)iron complexes
were prepared by functionalization of (3-butenyltrimethylenemethane)F
e(CO)(3) (3) or (formyltrimethylenemethane)Fe(CO)(3) (14). The product
s are characterized by H-1 and C-13-n.m.r., i.r. and high resolution m
ass spectroscopy. In addition, the X-ray diffraction analysis of one o
f these derivatives (13a) was accomplished. Reactions of (3), which in
troduce a new chiral centre, occur in a non-diastereoselective fashion
, while reactions of (14) that introduce a new chiral centre proceed w
ith good diastereoselectivity. The remote nature of the reactive funct
ionality and the (TMM)Fe(CO)(3) group is responsible for the lack of d
iastereoselectivity for (3). The present work demonstrates the robust
nature of the (TMM)Fe(CO)(3) fragment, embodied in its resistance towa
rd oxidation, and to attack by nucleophiles.