Acta Crystallographica Section E (Feb 2010)

cis,trans,cis,cis-7-tert-Butyldimethylsilyloxy-4,10-dimethyltetracyclo[5.4.1.04,12.010,12]dodecan-2-one

  • Philipp Weyermann,
  • Reinhart Keese,
  • Helen Stoeckli-Evans

DOI
https://doi.org/10.1107/S1600536810000887
Journal volume & issue
Vol. 66, no. 2
pp. o340 – o340

Abstract

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In the structure of the title compound, C20H34O2Si, a cis,trans,cis,cis-[4.5.5.5]fenestrane derivative, the geometry of the central C(C)4 substructure shows considerable distortion from an ideal tetrahedral arrangement towards planarity, with two opposite bridgehead bond angles of 128.87 (18) and 122.83 (17)°. The other bridgehead angle of the trans-bicyclo[3.3.0]octane subunit is also large [126.57 (19)°].