title: Crystal structure of (1S,2R)-6,6-dimethyl-4,8-dioxo-2-phenyl-spiro-[2.5]octane-1-carbaldehyde.
abstract: In the title compound, C17H18O3, the two non-spiro C atoms of the cyclo-propane ring bear a formyl and a phenyl substituent which are trans-oriented. In the crystal, mol-ecules are linked by weak C-H⋯O and C-H⋯π contacts resulting in a three-dimensional supra-molecular structure.
authors.affiliation: Ludwig-Maximilians-Universität, Department, Butenandtstrasse 5-13, 81377 München, Germany.
authors.forename: Saloua
authors.initials: S
authors.lastname: Chelli
authors.affiliation: Ludwig-Maximilians-Universität, Department, Butenandtstrasse 5-13, 81377 München, Germany.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Troshin
authors.affiliation: Ludwig-Maximilians-Universität, Department, Butenandtstrasse 5-13, 81377 München, Germany.
authors.forename: Sami
authors.initials: S
authors.lastname: Lakhdar
authors.affiliation: Ludwig-Maximilians-Universität, Department, Butenandtstrasse 5-13, 81377 München, Germany.
authors.forename: Herbert
authors.initials: H
authors.lastname: Mayr
authors.affiliation: Department Chemie und Biochemie, Ludwig-Maximilians Universität, Butenandtstrasse 5-13 (Haus F), D-81377 München, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Mayer
keywords: crystal structure; substituted spiro-cyclo­propanes; weak C—H⋯O and C—H⋯π inter­actions