Pseudosymmetry and high Z′ structures: the case of rac-(2R,2′R,5′S)-2-methyl-5′-[(1R,2R,5S,5′S)-1,4,4,5′-tetramethyldihydro-3′H-3,8-dioxaspiro[bicyclo[3.2.1]octane-2,2′-furan]-5′-yl]-3,4,1′,2′,3′,4′-hexahydro-[2,2′-bifuran]-5(2H)-one

The title compound, C22H34O6, is one of the products obtained by oxidation of squalene with the catalytic system RuO4(cat.)/NaIO4. It crystallizes in the P-1 space group, with four crystallographically independent molecules related by a pseudo-C2 symmetry axis. The structural analysis also shows tha...

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Bibliographic Details
Main Authors: Vincenzo Piccialli, Angela Tuzi, Roberto Centore
Format: Article
Language:English
Published: International Union of Crystallography 2017-09-01
Series:Acta Crystallographica Section E: Crystallographic Communications
Subjects:
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2056989017010805
Description
Summary:The title compound, C22H34O6, is one of the products obtained by oxidation of squalene with the catalytic system RuO4(cat.)/NaIO4. It crystallizes in the P-1 space group, with four crystallographically independent molecules related by a pseudo-C2 symmetry axis. The structural analysis also shows that the title compound is isomeric with two products previously reported in the literature and that are obtained by the same reaction procedure. In particular, out of the seven chiral C atoms present in the molecule, the title compound shows the opposite configuration at, respectively, four and two chiral centres with respect to the isomeric compounds.
ISSN:2056-9890