Triphenylantimony(v) Derivatives of 2,2-Disubstituted Benzothiazoline Ligands: Synthetic and Spectroscopic Studies

Abstract

The reactions of triphenylantimony(v) isopropoxide with 2,2-disubstituted benzothiazolines in a 1:2 molar ratio in refluxing benzene solution yielded the corresponding triphenylantimony(v) derivatives (1–5) of the type Ph3Sb[SC6H4N: C(R)CH2C(O)R']2, [Where, R═CH3, R'═CH3(1); R═CH3, R'═C6H5(2); R═CH3, R'═4-CH3C6H4(3); R═CH3, R'═4-ClC6H4(4); and R═CF3, R'═C6H5(5)]. All of these newly synthesized derivatives have been characterized by elemental analyses and molecular weight measurements as well as IR and NMR [1H and 13C] spectral studies. On the basis of spectral data, seven-coordination around central antimony atom has been assigned to these derivatives.