Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)


organic compounds



zj2096 scheme

Acta Cryst. (2012). E68, o3347    [ doi:10.1107/S1600536812046223 ]

(E)-tert-Butyl 4-(N'-hydroxycarbamimidoyl)piperazine-1-carboxylate

S. Sreenivasa, K. E. Manojkumar, P. A. Suchetan, N. R. Mohan and B. S. Palakshamurthy

Abstract: In the title compound, C10H20N4O3, the piperazine ring adopts a chair conformation. The molecule adopts an E conformation across the C=N double bond, with the -OH group and the piperazine ring trans to one another. Further, the H atom of the hydroxy group is directed away from the NH2 group. An intramolecular N-H...O contact occurs involving the NH2 group and the oxime O atom. In the crystal, molecules are linked via strong N-H...O and O-H...N hydrogen bonds with alternating R22(6) and C(9) motifs into tetrameric units forming R44(28) motifs.


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