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[Contents scheme]

Acta Cryst. (2013). E69, o761
[ doi:10.1107/S1600536813010131 ]

tert-Butyl 4-{5-[3-(trifluoromethoxy)phenyl]-1,2,4-oxadiazol-3-yl}piperazine-1-carboxylate

S. Sreenivasa, K. E. ManojKumar, A. Kempaiah, P. A. Suchetan and B. S. Palakshamurthy

Abstract: In the title compound, C18H21F3N4O4, the piperazine ring adopts a chair conformation and the dihedral angle between the oxadiazole and benzene rings is 6.45 (14)°. The C atoms and their attached H atoms in the piperazine ring are disordered, with site-occupation factors of 0.576 (12) and 0.424 (12). In the crystal, molecules are linked through weak C-H...O interactions, generating an R22(12) motif. Further, secondary C-H...O intermolecular interactions link the molecules into C(6) chains along [100].


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