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Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyl(tropone)iron
Published on: August 12, 2019
Racemic tricarbon-yl[7-meth-oxy-2-(η-phen-yl)chromane]-chromium(0)
Mukut Gohain1, Theunis J Muller, Barend C B Bezuidenhoudt
1Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
Abstract:
In the title compound, [Cr(C(16)H(16)O(2))(CO)(3)], the Cr(0) atom of the Cr(CO)(3) unit is coordinated to the phenyl ring of the flavan ligand in an η(6) mode, with a normal arene-to-metal distance. The Cr(CO)(3) unit exhibits a three-legged piano-stool conformation, while the dihydro-pyran ring displays a distorted envelope configuration. The phenyl ring is twisted away from the fused ring system by 25.5 (2)°. The meth-oxy group is almost coplanar with the phenyl ring [C(Me)-O-C(ar)-C(ar) torsion angle = 8.46 (2)°]. The crystal packing is stabilized by inter-molecular C-H⋯O inter-actions.
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