title: Crystal structure of N'-[(E)-(1S,3R)-(3-isopropyl-1-methyl-2-oxo-cyclo-pent-yl)methyl-idene]-4-methyl-benzene-sulfono-hydrazide.
abstract: The title compound, C17H24N2O3S, was synthesized in order to determine the relative configuration of the corresponding β-keto aldehyde. In the U-shaped mol-ecule, the five-membered ring approximates an envelope, with the methyl-ene C atom adjacent to the quaternary C atom being the flap, and the methyl and isopropyl substituents lying to the same side of the ring. The dihedral angles between the four nearly coplanar atoms of the five-membered ring and the flap and the aromatic ring are 35.74 (15) and 55.72 (9)°, respectively. The bond angles around the S atom are in the range from 103.26 (12) to 120.65 (14)°. In the crystal, mol-ecules are linked via N-H⋯O hydrogen bonds, forming a chain along the a axis.
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: David
authors: D
authors: Tymann
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: Dina Christina
authors: DC
authors: Dragon
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: Christopher
authors: C
authors: Golz
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: Hans
authors: H
authors: Preut
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: Carsten
authors: C
authors: Strohmann
authors: Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
authors: Martin
authors: M
authors: Hiersemann
keywords: crystal structure; hydrogen bonding; terpenoid synthesis