Condensation of Ethyl 1-Benzyl-3-oxo-4-isopropyl-2-pyrrolidine-carboxylate with Ethyl Cyanoacetate
نویسندگان
چکیده
منابع مشابه
Ethyl 3′-cyano-1′-methyl-2-oxo-4′-phenylspiro[acenaphthene-1,2′-pyrrolidine]-3′-carboxylate
In the title compound, C(26)H(22)N(2)O(3), the acenaphthen-1-one ring system is nearly planar and the pyrrolidine ring adopts a distorted envelope conformation. An inter-molecular C-H⋯O hydrogen bond stabilizes the crystal structure.
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The title compound, C20H27ClN2O3, was obtained via an original synthesis method. The central heterocyclic ring adopts a shallow envelope conformation, with the N atom bearing the cyclo-pentane ring as the flap [deviation from the other atoms = 0.442 (2) Å]. The cyclo-pentane ring adopts a twisted conformation about one of the CN-C bonds: the exocyclic C-N bond adopts an equatorial orientation. ...
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In the title compound, C(28)H(27)NO(5)S, the five-membered pyrrolidine ring, which exhibits an envelope conformation (the C atom at the spiral junction being the flap atom), makes dihedral angles of 57.37 (10) and 86.84 (8)°, respectively, with the phenyl ring and the acenaphthyl-ene ring system. In the crystal, mol-ecules associate via two C-H⋯O hydrogen bonds, forming R(2) (2)(20) and R(2) (2...
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In the title mol-ecule, C(21)H(19)ClO(3), the cyclo-hexene ring adopts an envelope conformation, with all substituents equatorial. The plane through its five coplanar atoms makes dihedral angles of 12.75 (14) and 74.16 (8)° with the phenyl and benzene rings, respectively. The dihedral angle between the latter two rings is 81.73 (12)°. Inter-molecular C-H⋯O hydrogen bonds and intra-molecular C-H...
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There are two independent mol-ecules in the asymmetric unit of the title compound, C16H15NO3S2, in which the pyrrolidine rings adopt envelope conformations, with a methyl-ene C atom as the flap. The dihedral angles betweeen the near-planar 2H-chromene ring systems [maximum deviations = 0.0167 (20) and 0.0136 (19) Å] and the pyrrolidine rings (all atoms) are 83.83 (11) and 82.43 (11)°. In the cr...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1958
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.78.9_1072