PREPARATION, PHYSICAL PROPERTIES, MASS AND NUCLEAR MAGNETIC RESONANCE SPECTRA OF SOME 2-ALKYL BENZIMIDAZOLES

Preparation, physical properties, mass and proton magnetic resonance spectral data of 2-alkyl (CH3/C2H5)-5-nitro-benzimidazoles (1) and (2) and their p-toluene sulfonyl derivatives (3) and (4) have been described. Two benzimidazoles (5) and (6) having same alkyl substituents but no nitro group in 5-position and their p-toluene sulfonyl derivatives (7) and (8) were prepared and studied for the sake of comparison of their n.m.r spectral properties with (3) and (4). In addition (1) and (2) were reduced to 5-amino-benzimidazoles (9) and (10)

MARIA C.GARCIA ALVAREZ ,NAGHMANA RASHID ,FARNAZ MALIK ,MASHOODA HASAN ,