Shivanagere Nagojappa Narendra Babu

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In the title compound, C(11)H(14)N(2)O(5), the mol-ecular structure is stabilized by an intra-molecular N-H⋯O hydrogen bond, which generates an S(6) ring motif. The nitro group is twisted slightly from the attached benzene ring, forming a dihedral angle of 5.2 (2)°. In the crystal packing, inter-molecular O-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules(More)
The asymmetric unit of the title compound, C(11)H(12)N(2)O(4), contains 12 crystallographically independent mol-ecules, labelled A to L. The nitro and carboxyl groups are twisted slightly out of the plane of the attached benzene ring in all independent mol-ecules except mol-ecules G and D. The nitro group is coplanar with the benzene ring in mol-ecule G and(More)
The asymmetric unit of title compound, C(11)H(14)N(2)O(4), consists of two crystallographically independent mol-ecules (A and B). In each, intra-molecular N-H⋯O hydrogen bonds generate S(6) ring motifs. The mean plane of the nitro group forms dihedral angles of 4.5 (3) and 0.5 (3)° with the benzene ring in mol-ecules A and B, respectively. In mol-ecule A,(More)
In the title compound, C(9)H(10)N(2)O(4), an intra-molecular N-H⋯O hydrogen-bond inter-action generates an S(6) ring motif. The nitro group is slightly twisted away from its attached benzene ring [dihedral angle = 15.29 (15)°]. In the crystal structure, mol-ecules are stacked down the a axis caused by short O⋯O(-1-x, -y, 2-z) contacts of 2.6481 (16) Å(More)
The asymmetric unit of the title compound, C(11)H(12)N(2)O(4), contains two crystallographically independent mol-ecules with similar geometries. Both mol-ecules contain an intra-molecular N-H⋯O hydrogen bond. The dihedral angles between the benzene ring and the mean plane of the cyclo-butane ring are 38.29 (7) and 57.04 (8)° in the two mol-ecules, and the(More)
In the title compound, C(11)H(14)N(2)O(4), all non-H atoms lie in a mirror plane except for one of the methyl groups which deviates from the mirror plane by 0.919 (3) Å and is twisted by a torsion angle of 62.9 (2)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal packing, the mol-ecules are linked together by O-H⋯O(More)
The asymmetric unit of the title compound, C(11)H(14)N(2)O(4), comprises four crystallographically independent mol-ecules (A, B, C and D) with similar geometries. In each mol-ecule, the butyl-amino side chain is in an extended conformation, and the carboxyl and butyl-amino groups are almost coplanar with the attached benzene ring; the nitro group is(More)
In the crystal structure of the title compound, C(13)H(18)N(2)O(4), the asymmetric unit consists of three crystallographically independent ethyl 4-butyl-amino-3-nitro-benzoate mol-ecules. There is an intra-molecular N-H⋯O hydrogen bond in each mol-ecule, which generates an S(6) ring motif. The structure is stabilized by inter-molecular N-H⋯O and C-H⋯O(More)
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