Tricarbonyl[η⁴-2-phenyl-4-(3-phenylallylidene)-4H-oxazol-5-one]iron(0)

Abstract

The title compound, [Fe(C18H13NO2)(CO)3], is produced by the reaction of Fe2(CO)9 with an azlactone obtained from hippuric acid and cinnamaldehyde. Although, in principle, various coordination sites are possible in the ligand, the 1,3‐butadiene subunit exclusively binds to the transition metal in an η4‐fashion. The crystal structure is stabilized by inter­molecular inter­actions between the O atoms of the lactone and terminal carbon monoxide ligands and various CH groups.

2,6-Dimethoxy-4-(5-oxo-2-phenyl-4,5-dihydro-1,3-oxazol-4-ylidenemethyl)phenyl acetate

“…1; Table 1). The title compound shows a weak intermolecular hydrogen bond between the C8 and O1 atoms (C8-H8 Similar structures have been observed in the related oxazolone analogues reported by Imhof & Garms (2005), Song et al (2004), and Vasuki et al (2001).…”

“…For background literature, see: Aaglawe et al (2003); Grassi et al (2004); Khan et al (2006); Song et al (2001); Sun & Cui (2007). For related structures, see: Imhof & Garms (2005); Song et al (2004); Vasuki et al (2001). = 102.119 (6) V = 903.7 (2) Å 3 Z = 2 Mo K radiation = 0.10 mm À1 T = 273 (2) K 0.15 Â 0.12 Â 0.10 mm…”

2-Phenyl-4-(3,4,5-trimethoxybenzylidene)-1,3-oxazol-5(4H)-one

“…Similar structures have been observed in the related oxazolone analogues reported by Sun et al (2007), Imhof & Garms (2005), Song et al (2004), and by Vasuki et al (2001).…”

“…For background literature, see: Aaglawe et al (2003); Grassi et al (2004); Khan et al (2006); Song et al (2001). For related structures, see: Sun et al (2007); Imhof & Garms (2005); Song et al (2004); Vasuki et al (2001). T = 273 (2) K 0.15 Â 0.12 Â 0.10 mm…”