4,4′-Dianilino-3,3′-(4-chlorobenzylidene)bis[furan-2(5H)-one]
نویسندگان
چکیده
In the mol-ecule of the title compound, C(27)H(21)ClN(2)O(4), the dihedral angle between the furan rings is 67.00 (3)°. The chloro-phenyl ring is oriented at dihedral angles of 76.61 (3) and 69.36 (3)° with respect to the furan rings. An intra-molecular N-H⋯O inter-action results in the formation of an eight-membered ring with a twisted conformation. In the crystal structure, inter-molecular N-H⋯O and C-H⋯O inter-actions link the mol-ecules into a three-dimensional network, forming R(2) (2)(16) ring motifs. Three weak C-H⋯π inter-actions are also found.
منابع مشابه
3,3′-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.
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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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In the title mol-ecule, C(15)H(18)N(4)O(6), the fused 2,3-dihydro-furan ring has an envelope conformation and the spiro pyrimidine ring has a half-chair conformation. In the crystal, short inter-molecular O⋯C contacts of 2.835 (4) and 2.868 (4) Å between the carbonyl groups indicate the existence of electrostatic inter-actions, which link the mol-ecules into corrugated sheets parallel to the ab...
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