4-Oxo-2,3,5,6-tetraphenylpiperidine-1-carbonitrile ethyl acetate hemisolvate

Abstract

Key indicatorsSingle-crystal X-ray study T = 105 K Mean (C-C) = 0.003 Å Disorder in solvent or counterion R factor = 0.067 wR factor = 0.188 Data-to-parameter ratio = 18.7For details of how these key indicators were automatically derived from the article, see

Crystal structure and Hirshfeld surface analysis of 5-acetyl-2-amino-4-(4-bromophenyl)-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridine-3-carbonitrile

“…A search of the Cambridge Structural Database (CSD, Version 5.42, update of September 2021; Groom et al, 2016) for the tetrahydropyridine unit gave 1340 hits, and some of which, namely OZAKOS (Naghiyev et al, 2021c), JEBREQ (Mohana et al, 2017), JEBRAM (Mohana et al, 2017), SETWUK (Suresh et al, 2007) and SETWOE (Suresh et al, 2007) closely resemble the title compound.…”

Crystal structures and Hirshfeld surface analyses of 2-amino-4-(4-bromophenyl)-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridine-3-carbonitrile hemihydrate and 1,6-diamino-2-oxo-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile

“…A search of the Cambridge Structural Database (CSD, Version 5.42, update of September 2021; Groom et al, 2016) gave eleven compounds closely related to the title compounds, viz. CSD refcodes YAXQAT (I) (Mamedov et al, 2022), OZAKOS (II) (Naghiyev et al, 2021), JEBREQ (III) (Mohana et al, 2017), JEBRAM (IV) (Mohana et al, 2017), SETWUK (V) (Suresh et al, 2007), SETWOE (VI) (Suresh et al, 2007), IQEFOC (VII) (Naghiyev et al, 2021a), MOKBUL (VIII) (Mohamed et al, 2014), PAVQIO (IX) (Al-Said et al, 2012), YIZGOE01 (X) (Jia & Tu, 2008) and YIBZAL (XI) (Eyduran et al, 2007).…”

3,5-Bis[(E)-4-methylbenzylidene]-4-oxopiperidine-1-carbonitrile

“…For related literature, see Cremer & Pople (1975); Dimmock et al (1990Dimmock et al ( , 2001; Suresh et al (2005aSuresh et al ( , 2005bSuresh et al ( , 2006; Natarajan et al (2005).…”

“…The crystal structure of the title compound is a good example of a symmetrically shaped molecule loosing its molecular symmetry upon crystallization. In this context, we have already elucidated the crystal structures of cyano substituted (Suresh et al, 2006) and nitroso substituted (Suresh et al, 2005a;2005b;Natarajan et al, 2005) piperidinone derivatives. The present paper reports the crystal structure of 1-cyano-3,5-bis[(4-methylphenyl)methylidene]-piperidin-4-one.…”