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Updated: Jul 14, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Conformational enantiomeric disorder in tripivaloylmethane
Branko Kaitner1, Vladimir Stilinović
1Laboratory of General and Inorganic Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia. kaitner@chem.pmf.hr
Abstract:
Tripivaloylmethane [systematic name: 4-(2,2-dimethylpropanoyl)-2,2,6,6-tetramethylheptane-3,5-dione], C(16)H(28)O(3), is a 1,3,3'-triketone with C(3) molecular symmetry, prepared by alpha-acylation of 2,2,6,6-tetramethylheptane-3,5-dione with 2,2-dimethylpropanoyl anhydride in the presence of barium metal. The molecules are conformationally chiral and pack so that each molecular site is occupied with equal probability by the two enantiomers. The carbonyl groups of the two superimposed enantiomeric molecules are at an angle of 75.4 (16) degrees .
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