Sreenivasa, S. published the artcile(E)-tert-Butyl 4-(N’-hydroxycarbamimidoyl)piperazine-1-carboxylate, Name: tert-Butyl 4-cyanopiperazine-1-carboxylate, the publication is Acta Crystallographica, Section E: Structure Reports Online (2012), 68(12), o3347, database is CAplus and MEDLINE.
In the title compound, C10H20N4O3, the piperazine ring adopts a chair conformation. The mol. 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 intramol. N-H¡¤¡¤¡¤O contact occurs involving the NH2 group and the oxime O atom. In the crystal, mols. are linked via strong N-H¡¤¡¤¡¤O and O-H¡¤¡¤¡¤N H bonds with alternating R22(6) and C(9) motifs into tetrameric units forming R44(28) motifs. Crystallog. data and at. coordinates are given.
Acta Crystallographica, Section E: Structure Reports Online published new progress about 113534-02-4. 113534-02-4 belongs to piperazines, auxiliary class Piperazine,Nitrile,Amide, name is tert-Butyl 4-cyanopiperazine-1-carboxylate, and the molecular formula is C12H14O2, Name: tert-Butyl 4-cyanopiperazine-1-carboxylate.
Referemce:
https://en.wikipedia.org/wiki/Piperazine,
Piperazines – an overview | ScienceDirect Topics