Acetic Acid → 8-Chloro-6-(2-fluorophenyl)-1-methyl-3-morpholino-4H-imidazo[1,5-a][1,4]benzodiazepine

HRID 1389432Notes

Reaction equation

HRID 1389432 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[NH:11][CH:10]([C:12]([N:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[N:13]O)[CH2:9][N:8]=[C:7]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[F:27])[C:6]=2[CH:28]=1.[C:29](O)(=O)[CH3:30].C(=O)C.C(O)C>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[C:29]([CH3:30])=[N:13][C:12]([N:15]4[CH2:20][CH2:19][O:18][CH2:17][CH2:16]4)=[C:10]3[CH2:9][N:8]=[C:7]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[F:27])[C:6]=2[CH:28]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 177AcetaldehydeHCID 702EthanolHCID 539256777-chloro-5-(2-fluorophenyl)-2,3-dihydro-N-hydroxy-alpha-(4-morpholinyl)-1H-1,4-benzodiazepine-2-methanimine

Product 1

HCID 130469898-Chloro-6-(2-fluorophenyl)-1-methyl-3-morpholino-4H-imidazo[1,5-a][1,4]benzodiazepine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 0.4 g of 7-chloro-5-(2-fluorophenyl)-2,3-dihydro-N-hydroxy-α-(4-morpholinyl)-1H-1,4-benzodiazepine-2-methanimine, 5 ml of glacial acetic acid and 0.4 ml of acetaldehyde was heated to reflux for 5 minutes. The usual workup and chromatography of the crude reaction mixture on 5 g of silica gel using 5% (v/v) of ethanol in methylene chloride gave yellow crystalline product identical with that described above.

Workup

  1. temperaturewas heated
  2. temperatureto reflux for 5 minutes
  3. customgave yellow crystalline product identical with

Sources & evidence

ORD record
ord-7f9a947d02654158a046f24bdc3f6ce2
Source dataset
uspto-grants-1981_01
Patent number
US04244868

Reaction notes

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