3,3′-Dibromo-4,4′-[(1R,2R)-cyclohexane-1,2-diyldiimino]dipent-3-en-2-one
نویسندگان
چکیده
The asymmetric unit of the title compound, C(16)H(24)Br(2)N(2)O(2), contains two independent mol-ecules, each which has two intra-molecular N-H⋯O hydrogen bonds linking the amine N atoms to the enolic O atoms of the same acacH-imine unit. In the crystal, the mol-ecules are lined up by inter-molecular weak C-H⋯O hydrogen bonds, forming two vertical each other two-dimensional chains along the a axis and b axis of the unit cell, respectively.
منابع مشابه
(2Z,2′Z,4E,4′E)-4,4′-(Cyclohexane-1,2-diyldinitrilo)dipent-2-en-2-ol
A new tetra-dentate chiral Schiff base ligand, C(16)H(26)N(2)O(2), has been synthesized by the reaction of acetyl-acetone with (1R,2R)-(-)-1,2-diamino-cyclo-hexane. Both of the mol-ecules in the asymmetric unit are of the same chirality (R configuration), since the absolute configuration was determined by the starting reagent (1R,2R)-(-)-1,2-diamino-cyclo-hexane. The six-membered cyclo-hexane r...
متن کامل3,3′-Dibromo-5,5′-bis[(S)-l-menthyloxy]-4,4′-(hexane-1,6-diyldiimino)difuran-2(5H)-one
The title compound, C(34)H(54)Br(2)N(2)O(6), was obtained by the Michael addition-elimination reaction of (5S)-5-(l-menthyl-oxy)-3,4-dibromo-furan-2(5H)-one with 1,6-hexa-nediamine in the presence of triethyl-amine. The crystal structure contains two chiral five-membered furan-one rings, in twist and envelope conformations, and two six-membered cyclo-hexane rings in chair conformations.
متن کاملHighly selective R,S-coordination of non racemic (1R,2R)-(1,2-dialkyl)-1,2-diamine cyclohexane derivatives to palladium dichloride.
In non-racemic (1R,2R)-(1,2-dialkyl)-1,2-diaminocyclohexane palladium dichloride complexes the C2 symmetry of the diamine ligand is broken, resulting in selective R,S-coordination.
متن کاملrac-(1R,2R,4S)-1,2-Dibromo-4-[(1R)-1,2-dibromoethyl]cyclohexane
In the title compound, C(8)H(12)Br(4), the cyclo-hexane ring exhibits a chair conformation. The C-Br distances range from 1.964 (6) to 1.985 (5) Å and the C-C distances range from 1.496 (6) to 1.543 (7) Å. Short inter-molecular Br⋯Br contacts [3.467 (4) Å] occur in the crystal.
متن کامل(E,E)-3,3′-Dimethyl-1,1′-diphenyl-4,4′-{(ethane-1,2-diyldiimino)bis[(2-furyl)methylidyne]}di-1H-pyrazol-5(4H)-one
The complete molecule of the title compound of the title compound, C(32)H(28)N(6)O(4), is generated by crystallographic inversion symmetry. The dihedral angles between the pyrazalone ring and the pendant phenyl and furan rings are 15.65 (8) and 65.06 (8)°, respectively. In the crystal, the molecules are linked by N-H⋯O, C-H⋯O and weak C-H⋯π interactions.
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2008