Synthesis and NMR spectral assignments of novel nitrogen and sulfur heterocyclic compounds

Abstract

Synthesis and NMR spectral studies of multidentate N and S heterocycles, 1,3,5-tris(N-methylbenzimidazolyl)benzene, 1,3,5-tris(benzimidazolyl)benzene,1, 3,5-tris(benzothiazolyl) benzene, 2,2â²-bipyridine 3,3â²- bis(benzothiazolyl)benzene and 1,2,4,5-tetrakis(benzothiazolyl) benzene have been carried out. 2D 1H-1H PFG-COSY as well as 1H-13C single and multiple bond correlated (2D GRASP-HSQC and GRASP-HMBC) experiments have been employed to characterize the compounds. 1D NOE experiments have been useful in understanding the structure of 1,3,5-tris(N-methylenzimidazolyl)benzene. Copyright © 2008 John Wiley & Sons, Ltd