26963-48-4Relevant academic research and scientific papers
7,8-Dihydroimidazopyrimidine-5(6H)-ones, -5(6H)-thiones, and -5(6H)-ylidenecyanamides
Buschauer, Armin,Sattler, Hans-Joachim,Schunack, Walter
, p. 2597 - 2614 (2007/10/02)
The cyclisation of the 4,5-substituted 2-(2-aminoethyl)imidazoles 5 with dimethyl N-cyanodithioimidocarbonate (2), 1,1'-carbonyldiimidazole (10a), or 1,1'-thiocarbonyldiimidazole (10b) gives the hitherto unknown title compounds 7, 11, and 14.The 1H and 13
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.
