Hydrochloric Acid → HCID 178478845, compound

HRID 357610

Reaction equation

HRID 357610 reaction equation
[ClH:1].[OH:2][NH:3][C:4]([C:6]1[CH:14]=[CH:13][CH:12]=[C:11]2[C:7]=1[CH2:8][CH2:9][C:10]2=[N:15]O)=[NH:5].Cl.N[N:19]1[CH2:23][CH2:22][N:21]=[C:20]1[NH2:24].CC1C=CC(S(O)(=O)=O)=CC=1.C=CC1C=CC=CC=1.C(C1C=CC=CC=1C=C)=C>C(O)(C)C>[ClH:1].[ClH:1].[OH:2][NH:3][C:4]([C:6]1[CH:14]=[CH:13][CH:12]=[C:11]2[C:7]=1[CH2:8][CH2:9][C:10]2=[N:15][N:21]1[CH2:22][CH2:23][N:19]=[C:20]1[NH2:24])=[NH:5]

Participants

7

Reactant 5

HCID 313Hydrochloric AcidHCID 6101p-Toluenesulfonic acidHCID 174664Divinylbenzene-styreneHCID 189379401,2-Diamino-4,5-dihydro-imidazole hydrochlorideHCID 178513250HCID 178513250, compound

Product 1

HCID 178478845HCID 178478845, compound

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

0.5 ml of 32% hydrochloric acid (Merck, Darmstadt, Germany; p.a.) is added, with stirring, to a mixture of 0.51 g (0.0025 mol) of 4-(N-hydroxyamidino)-2,3-dihydro-1H-inden-1-one oxime, 0.342 g (0.0025 mol) of 1,2-diamino-4,5-dihydro-imidazole hydrochloride [m.p. 245°-246° C.; prepared from the corresponding p-toluenesulfonate salt, see EP 0 327 919, Example 12, by ion exchange on ®Amberlite IRA-400 (anion exchanger based on a styrene/divinylbenzene polymer with quaternary ammonium groups in the Cl- form; Fluka, Buchs, Switzerland)] and 12 ml of isopropanol, and the reaction mixture is stirred at 80°-90° C. for 16 hours. The reaction mixture is filtered while hot and the filtration product is washed with isopropanol and recrystallized from hot water. In that manner there is obtained the title compound, m.p. >245° C., 1H-NMR (D2O): δ=8.08 (d, 1H); 7.72 (d, 1H); 7.56 (t, 1H); 4.14 (t, 2H); 3.81 (t, 2H); 3.3 (m, 2H); 3.15 (m, 2H).

Workup

  1. filtrationThe reaction mixture is filtered while hot and the filtration product
  2. washis washed with isopropanol
  3. customrecrystallized from hot water

Sources & evidence

ORD record
ord-baf3b5216d004be2abe28a39dc27158b
Source dataset
uspto-grants-1998_11
Patent number
US05840911

Linked notes

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