Zwitterionic 6-methyl-2-oxo-3-[1-(ureidoiminio)ethyl]-2H-pyran-4-olate monohydrate

作者：Djedouani Amel; Boufas Sihem^*; Allain Magali; Bouet Gilles; Khan Mustayeen

来源：Acta Crystallographica Section E-Structure Reports Online, 2008, 64(9): O1785-U2203.

DOI：10.1107/S1600536808026032

The title compound, C(9)H(11)N(3)O(4) center dot H(2)O, was prepared by the reaction of dehydroacetic acid and semicarbazide hydrochloride. It crystallizes in a zwitterionic form with cationic iminium and anionic enolate groups. In the crystal structure, the almost planar molecules are held together by N-H center dot center dot center dot O, O-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, some of them involving the water molecules.

• 出版日期2008-9