2-(3,5-Dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl)acetic acid
نویسندگان
چکیده
The asymmetric unit of the title compound, C11H11NO4, contains two mol-ecules, A and B, with different conformations: in mol-ecule A, the norborne and carb-oxy-lic acid groups lie to the same side of the heterocycle, whereas in a mol-ecule B, they lie on opposite sides. In the crystal, the A mol-ecules form R 2 (2)(8) carb-oxy-lic acid inversion dimers, linked by pairs of O-H⋯O hydrogen bonds. The B mol-ecules link to one of the ketone O atoms of the A mol-ecule by an O-H⋯O inter-action, resulting in tetra-mers (two A and two B mol-ecules). The tetra-mers are linked by weak C-H⋯O inter-actions, generating a three-dimensional network.
منابع مشابه
4-(3,5-Dioxo-10-oxa-4-azatricyclo[5.2.1.02,6]decan-4-yl)-10-oxa-4-azatricyclo[5.2.1.02,6]decane-3,5-dione
In the title compound, C(16)H(16)N(2)O(6), the dihedral angle between the two pyrrolidine rings is 79.38 (14)°.
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In the title compound, C17H11Cl6NO4, the configuration of the cyclo-alkene skeleton is endo,cis. The benzene ring is twisted by 58.94 (8)° from the attached pyrrolidine ring. Two carbonyl groups play a key role in the crystal packing. A short inter-molecular C⋯O distance of 3.017 (3) Å reveals that one carbonyl group is involved in dipole-dipole inter-actions, which link two adjacent enanti-ome...
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In the title compound, C17H12Cl4FNO4, the configuration of the cyclo-alkene skeleton is endo,cis. The benzene ring is twisted by 71.01 (11)° from the attached pyrrolidine ring. In the crystal, one of the methine groups of the fused-ring system forms a weak C-H⋯O hydrogen bond. The other methine groups participates in a C-H⋯F inter-action to the same adjacent mol-ecule. Together, these generate ...
متن کاملexo-1,7-Dimethyl-4-phenyl-10-oxa-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
The title compound, C16H15NO3, consists of an oxabicycle fused to an N-phenyl-substituted pyrrolidine ring anti to the double bond, affording the exo isomer. In the oxabicycle system, the six-membered ring presents a boat conformation, while the heterocyclic rings show envelope conformations with the O atom projected out of the plane. In the crystal, adjacent mol-ecules are linked via weak C-H⋯...
متن کاملexo,exo-4-(2-Hydroxyethyl)-10-oxa-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
In the crystal of the title compound, C(10)H(11)NO(4), the hy-droxy group forms an O-H⋯O(carbon-yl) hydrogen bond with an adjacent molecule, so forming chains which extend along (010). Further weak C-H⋯O hydrogen-bonding associations give an infinite three-dimensional network structure.
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