26963-47-3Relevant articles and documents
SYNTHESIS OF SOME PYRIMIDO !1,6-!! BENZIMIDAZOLA DERIVATIVES
NAGARAJAN K,RANGA RAO V,VENKATESWARLU A
, p. 126 - 129 (2007/10/08)
The base-catalyzed condensation of 2- (!- aminoethyl) benzimidazole with a vareity of aldehydes, such as formaldehyde, benzaldehyde, p- chlorobenzaldehye, etc. , yields tetrahydropyrimido !1,6-!! benzimidazoles. The NMR spectral data of the products decidedly favor a cyclic structure as compared to the isomeric open chain Schiff's base.