Author(s): S.S. Al-Showiman, A.M. Al-Shalan, and I.M. Al-Najjar
Article publication date: 1987-12-01
Vol. 5 No. 3 (yearly), pp. 359-373.
174
Keywords
UV, IR, imines
Abstract
A series of 18 imines, Ar(Me)C=N~R, Ar(Ph)C=N~R, where Ar=C4H3S (2 or 3 thienyl), X-C4H2S(X= 5-Br, 5-Me, X2 - C4HS (X2= 2.5-diMe). R=Me.1.pr.t.Bu.Bu.Bz) have been prepared and thoroughly investigated by 1H and 13C NMR spectroscopy. The NMR results show that the imines exist in solution as an equilibrating E/Z isomer mixture at ambient temperature for X2-C4HS (X2= 2.5-- diMe) imines and only a single E-isomer exists or other imines. In addition, 1H NMR spectra have been obtained in different solvents and analysed. UV and IR spectra of some off the title compounds are also reported