Hydrochloric Acid → HCID 131720226, compound

Participants

Reaction Steps

The procedure is carried out as in Example 1 but starting with 2 g of 1-(4-methyl-1-oxo-2-indanyl)imidazole-2-carboxamide, a total of 60 ml of methanol and 25 ml of 12N aqueous hydrochloric acid solution. 1.45 g of 9-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: (300 MHz; DMSO-d6 plus a few drops of CD3COOD-d4 ; δ in ppm): 2.40 (s, 3H: --CH3); 4.01 (s, 2H: --CH2-- in position 10); 7.23 (d, J=8 Hz 1H: --H8); 7.36 (t, J=8 Hz, 1H: --H7); 7.8 (d, J=8 Hz, 1H: --H6); 8.17 and 8.36 (2d, J=1 Hz, 1H each: --H of imidazole).

Provenance & Evidence