Synthesis and x-ray structure of (1 Z,2 Z)-1,2-Bis(2-(phenylsulfonyl)-1-(4-tolyl)ethylidene)hydrazine

The title compound (1z,2z)-1,2-bis(2-(phenylsulfonyl)-1-(4-tolyl)ethylidene)hydrazine (5) was prepared,in 78% yield,by the reaction of 2-(phenylsulfonyl)-1-(4-tolyl)ethan-1-one (3) with hydrazine hydrate in acetic acid at 90°c under microwave irradiation in a closed vessel with power 100 w for 3 min. the structure of the newly synthesized compound was established under the basis of its ir,mass,1h nmr,and x-ray single crystal analysis. the crystal of 5 belongs to monoclinic space group,p 2 1 / c,with a = 5.2944 (3) å,b = 17.5748 (9) å,c = 15.4701 (8) å,β = 105.767 (4)°,z = 2,v = 1385.30 (13) å3,d c = 1.306 mg m-3,= 2.05 mm-1,f (000) = 572,r = 0.075,and w r = 0.224 for 1419 observed reflections with i > 2 σ (i). the asymmetric unit of compound 5 contains one molecule with z configuration about the c7=n1 and c7a=n1a double bond. this z configuration of 5 is stabilized by intramolecular hydrogen bonds c1-h1an1 and c1a-h1aan1a. the molecular packing in the crystal structure of 5 is stabilized by intermolecular interactions forming a three-dimensional network. © 2014 hatem a. abdel-aziz et al.