Methyl (2 '-hydroxybiphenyl-2-yloxy)acetate

Acta Crystallographica Section E Structure Reports Online (Impact Factor: 0.35). 04/2009; 65(Pt 4):o931. DOI: 10.1107/S1600536809011362
Source: PubMed

ABSTRACT The three independent mol-ecules of the title compound, C(15)H(14)O(4), have similar orientations of their aromatic rings, the dihedral angles between the rings being 57.0 (1), 58.1 (1) and 58.2 (1)°. In each mol-ecule, the hydr-oxy group forms an intra-molecular hydrogen bond to the carbonyl O atom, forming an S(10) ring motif.

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    ABSTRACT: The title compound, C(24)H(30)O(6), does not exhibit π-π inter-actions due to the steric effect of the bulky tert-butyl groups present in the mol-ecule. The presence of these groups at the 2 and 2' positions hinders the free motion of the benzene rings relative to each other, causing them to adopt an anti-periplanar arrangement. The benzene rings are twisted by just under 50.96 (17)° with respect to each other. The carbonyl groups within the mol-ecule are directed in different directions, one towards the biphenyl group and the other away from it. The mol-ecules are linked together by C=O⋯H-C hydrogen bonds.
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