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2-{3-Cyano-5,5-dimethyl-4-[4-(piperidin-1-yl)buta-1,3-dien-yl]-2,5-dihydro-furan-2-yl-idene}malononitrile.

ABSTRACT: The title compound, C(19)H(20)N(4)O, crystallizes as twinned crystals containing two independent mol-ecules which pack into a three-dimensional matrix via several C-H?N(cyano) inter-actions, with a C?N range of 3.324?(8)-3.568?(8)?Å and C-H?N angles in the range 147-166°.

SUBMITTER: Gainsford GJ

PROVIDER: S-EPMC2960376 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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2-{3-Cyano-5,5-dimethyl-4-[4-(piperidin-1-yl)buta-1,3-dien-yl]-2,5-dihydro-furan-2-yl-idene}malononitrile.

Gainsford Graeme J GJ Bhuiyan M Delower H MD Kay Andrew J AJ Spek Anthony L AL

Acta crystallographica. Section E, Structure reports online 20080123 Pt 2

The title compound, C(19)H(20)N(4)O, crystallizes as twinned crystals containing two independent mol-ecules which pack into a three-dimensional matrix via several C-H⋯N(cyano) inter-actions, with a C⋯N range of 3.324 (8)-3.568 (8) Å and C-H⋯N angles in the range 147-166°. ...[more]

PMID: 21201523

Similar Datasets

2-{3-Cyano-5,5-dimethyl-4-[4-(pyrrol-idin-1-yl)buta-1,3-dien-yl]-2,5-dihydro-furan-2-yl-idene}malononitrile dichloro-methane solvate.

Project description:The structure of the title compound, C(18)H(18)N(4)O·CH(2)Cl(2), was solved using data collected from a multiple crystal (note high R factors). The crystal structure is dominated by two bifurcated attractive C-H?N(cyano) inter-actions.

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Project description:The title compound, C(29)H(28)N(4)O(2), excluding the hydroxyethyl and methyl groups, is slightly twisted from planarity so that the terminating indol-2-yl-idene and furan-2-yl-idene moiety planes subtend a dihedral angle of 6.27 (8)°. A small inwards fold in the polymethine atom chain is consistent with centrosymmetric dimer formation via O-H⋯N(cyano) hydrogen bonds. In the crystal, the mol-ecules pack in layers approximately parallel to the (10[Formula: see text]) plane via pairs of O-H⋯N and C-H⋯N(cyano) inter-actions.

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N-[(2S)-4-Chloro-2-(l-menth-yloxy)-5-oxo-2,5-dihydro-furan-3-yl]-l-valine.

Project description:The title compound, C(19)H(30)ClNO(5), was obtained by the tandem asymmetric Michael addition-elimination reaction of (5S)-3,4-dichloro-5-(l-menth-yloxy)furan-2(5H)-one and l-valine in the presence of potassium hydroxide. The furan-one unit is approximately planar (r.m.s. deviation = 0.0204?Å) and the six-membered cyclo-hexane ring adopts a chair conformation. The crystal structure is stabilized by a network of O-H?O and N-H?O hydrogen bonds.

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