Diethyl 1-acetyl-4′-(4-chlorophenyl)-5′-(4-nitrophenyl)-2-oxospiro[indoline-3,3′-pyrrolidine]-2′,2′-dicarboxylate
نویسنده
چکیده
In the title compound, C(31)H(28)ClN(3)O(8), the pyrrolidine ring exhibits an envelope conformation, with the spiro C atom located at the flap position. A spiro junction links the oxindole ring system and the pyrrolidine ring. The planar oxindole ring system is twisted with respect to the nitro-benzene and chloro-benzene rings, with dihedral angles of 62.34 (11) and 75.93 (9)°, respectively. In the crystal, a weak C-H⋯O interaction links the molecules into chains and two intramolecular C-H⋯O close contacts are seen.
منابع مشابه
Diethyl 4-acetyl-5-(2-nitrophenyl)pyrrolidine-2,2-dicarboxylate
The title compound, C(18)H(22)N(2)O(7), was synthesized by the 1,3-dipolar cyclo-addition reaction of but-3-en-2-one, diethyl 2-amino-malonate and 2-nitro-benzaldehyde. In the mol-ecule, the pyrrolidine ring possesses an envelope conformation. Inter-molecular N-H⋯O and C-H⋯O hydrogen bonds are present in the crystal structure.
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In the title compound, C(23)H(19)N(3)O(4), the pyran ring adopts a half-chair conformation, while the pyrrolidine (with a C atom as the flap atom) and the five-membered ring in the indoline (with a C atom as the flap atom) ring system adopt slight envelope conformations. The pyrrolidine ring makes dihedral angles of 83.3 (1) and 60.4 (1)° with the mean plane through all non-H atoms of the indol...
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In the title compound, C(21)H(20)FN(3)O(5), the the pyrrolidine ring makes dihedral angles of 84.91 (6) and 62.38 (7)° with the oxindole unit and the fluoro-phenyl ring, respectively. The pyrrolidine ring assumes an envelope conformation with the spiro C atom as the flap. The crystal packing features weak N-H⋯N and C-H⋯O hydrogen bonds.
متن کاملMethyl 3-[ferrocenyl(hydroxy)methyl]-1-methyl-2′-oxospiro[pyrrolidine-2,3′-indoline]-3-carboxylate
In the title compound, [Fe(C(5)H(5))(C(20)H(21)N(2)O(4))], the pyrrolidine ring exhibits an envelope conformation with the spiro-C atom deviating from the plane of the remaining four atoms. The pyrrolidine ring is almost perpendicular to the indolinone ring [dihedral angle = 87.52 (7)°]. The structure is stabilized by an intra-molecular O-H⋯N hydrogen bond and by inter-molecular C-H⋯O and N-H⋯O...
متن کامل1′-Benzyl-4,4′′-bis(4-chlorophenyl)-3-(2,6-dichlorophenyl)-1′′-methyl-4,5-dihydroisoxazole-5-spiro-3′-piperidine-5′-spiro-3′′-pyrrolidine-2′′-spiro-3′′′-indoline-2′′′,4′-dione
The asymmetric unit of the title compound, C(43)H(34)Cl(4)N(4)O(3), contains two crystallographically independent mol-ecules. In both mol-ecules, the pyrrolidine ring adopts a twist conformation, the oxindole units are slightly distorted from planarity and the isoxazoline ring adopts an envelope conformation. The crystal structure is stabilized by N-H⋯O hydrogen-bonding inter-actions giving one...
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