Hydrochloric Acid → HCID 131720225, compound

Participants

Reaction Steps

The procedure is carried out as in Example 1 but starting with 1.8 g of 1-(5-methyl-1-oxo-2-indanyl)imidazole-2-carboxamide, a total of 80 ml of methanol and 22 ml of 12N aqueous hydrochloric acid solution. 1.5 g of 8-methyl-5H, 10H-imidazo [1,2-a]indeno[1,2-e]pyrazin-4-one hydrochloride are thus obtained which decompose without melting above 300° C. [NMR spectrum: (200 MHz; DMSO-d6 ; δ in ppm): 2.42 (s, 3H: Ar--CH3); 4.05 (s, 2H: --CH2-- in position 10); 7.27 (broad d, J=8 Hz 1H: --H7); 7.48 (broad s, 1H: --H9); 7.83 (d, J=8 Hz, 1H: --H6); 7.97 and 8.25 (2d, J=1.5 Hz, 1H each: --H of imidazole); 13.20 (unresolved complex, 1H: --CONH--)].

Provenance & Evidence