Jagdish Tonannavar

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In the title compound, C18H20Cl2N2O2S, the piperazine ring adopts a chair conformation. The dihedral angle between the sulfonyl-bound benzene ring and the best-fit plane through the six non-H atoms of the piperazine ring is 72.22 (12)°; those between the di-chloro-benzene ring and the sulfonyl and piperazine rings are 2.44 (13) and 74.16 (2)°, respectively.(More)
In the title compound, C15H15NO4S, the dihedral angle between the benzene rings is 78.62 (16)°. In the crystal, adjacent mol-ecules are linked along the c axis into C(4) chains through strong N-H⋯O hydrogen bonds. Mol-ecules are further connected through C-H⋯O hydrogen bonds into a hexa-meric unit generating an R (6) 6(66) motif. Another C-H⋯O inter-action(More)
The title compound, C14H12ClNO4S, crystallizes with two mol-ecules in the asymmetric unit. The dihedral angles between the benzene rings are 89.68 (1) (mol-ecule 1) and 82.9 (1)° (mol-ecule 2). In each mol-ecule, intra-molecular N-H⋯O hydrogen bonds between the amide H atom and the meth-oxy O atom generate S(6) loops. In the crystal, mol-ecule 2 is linked(More)
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