Synthèse des N-amidotriazolones: Structure cristalline du 1-phényl-3-éthyl-4-benzamido-1,2,4-triazol-5-one, C17H16N4O2
Written by sctunisie no commentsThe hydrazides 1, react with hydrazonates N-1-ethoxycarbonylated 2 to give 1,2,4-triazol-5-ones 3. The X ray crystal structure of one compound has been analysed and confirms the proposed structure. The C17H16N4O2 is monoclinic P21/n with the following unit cell dimensions a = 13.460(6)Å, b = 7.370(2)Å, c = 15.747(6)Å, β = 96.30(2)°, z = 4, ρx = 1.319g.cm-3. The average structure was determinated at R = 0.0622 and Rw = 0.2210. Examination of the structure shows isolated dimers of C34H32N8O4 parallel to the c axis : the molecules are connected through intermolecular hydrogen bonds.
A. Rekik, S. Chaabouni, F. Chabchoub, S. Kamoun, M. Salem
Hydrazonates-triazolones, Crystal structure
Pages 925-933
