Spectroscopic Studies of some 2-substituted Benzyliden Eamino Thiazoles, Thiadiazole, and Benzothiazole

Abstract

IR،UV1،H- and 13C-NMR chemical shifts are reported for a series of 20 imines Ar(X)CH=R (R’ = thiazole derivatives, thiadiazole and benzothiazole). The stereochemistry of the imines were determined through their NMR spectral data. The imines were found to exist in solution as only a single E-isomer at ambient temperature. Interestingly ،the carbon-13 shifts for azomethine group (imines) (CH=N) carbons which are affected by both (X) and (Y) substituents. UV and IR spectra of some of the title compounds are also reported.