Reaktion #444774

Reaktionsgleichung

1-[4-(N-hydroxyamidino)-2,3-dihydro-1H-inden-1-ylideneamino]-2-amino-4-(4-methoxyphenyl)-imidazole dihydrochloride

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title compound

1-[4-(Amidino)-2,3-dihydro-1H-inden-1-ylideneamino]-2-amino-4-(4-methoxvphenyl)-imidazole dihydrochloride

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeis carried out at room temperature and under normal pressure until the absorption of hydrogen
2. 2
   FiltrationThe reaction mixture is then filtered
3. 3
   Einengenthe filtrate is concentrated
4. 4
   SonstigeThe product that has crystallised out
5. 5
   Filtrationis filtered off with suction
6. 6
   Sonstigerecrystallized from methanol

Vorschrift

Analogously to Example 2, approximately 2 g of Raney nickel are added to a solution of 5.8 g (0.00129 mol) of 1-[4-(N-hydroxyamidino)-2,3-dihydro-1H-inden-1-ylideneamino]-2-amino-4-(4-methoxyphenyl)-imidazole dihydrochloride in 600 ml of methanol, and hydrogenation is carried out at room temperature and under normal pressure until the absorption of hydrogen has ceased. The reaction mixture is then filtered and the filtrate is concentrated. The product that has crystallised out is filtered off with suction and recrystallized from methanol, yielding the title compound in the form of the monohydrate, m.p. >220° C., 1H-NMR (DMSO): δ=9.56 (d, 4H); 8.33 (d, 1H); 7.99 (s, 1H); 7.94 (s, 2H); 7.75-7.84 (m, 3H); 7.64 (t, 1H); 7.04 (d, 2H); 3.80 (s, 3H), 3.40 (m, 4H).

Quelle