Potassium Hydroxide → HCID 10913596, compound

HRID 324300Notes

Reaction equation

HRID 324300 reaction equation
[Cl:1][C:2]1[N:11]2[C:5]([C:6](=[C:16]3[CH2:21][CH2:20][N:19](C(OCC)=O)[CH2:18][CH2:17]3)[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]=3[CH2:9][CH2:10]2)=[N:4][CH:3]=1.[OH-].[K+]>C(O)(C)C>[Cl:1][C:2]1[N:11]2[C:5]([C:6](=[C:16]3[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]3)[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]=3[CH2:9][CH2:10]2)=[N:4][CH:3]=1

Participants

4

Reactant 2

HCID 14797Potassium HydroxideHCID 18612501HCID 18612501, compound

Product 1

HCID 10913596HCID 10913596, compoundYield 90%

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

A mixture of intermediate 12 (30.4 g) and potassium hydroxide (46 g) in isopropanol (370 ml) was stirred and refluxed for 6 hours. The solvent was evaporated. The residue was taken up in water and extracted with DCM. The organic layer was separated, dried (MgSO4), filtered and the solvent was evaporated. The residue was crystallized from ACN. The precipitate was filtered off and dried, yielding 1.65 g (90%) of 3-chloro-6,11-dihydro-11-(4-piperidinylidene)-5H-imidazo[2,1-b][3]benzazepine (intermediate 13).

Workup

  1. temperaturerefluxed for 6 hours
  2. customThe solvent was evaporated
  3. extractionextracted with DCM
  4. customThe organic layer was separated
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customthe solvent was evaporated
  8. customThe residue was crystallized from ACN
  9. filtrationThe precipitate was filtered off
  10. customdried

Sources & evidence

ORD record
ord-4747a94d6b954fbca9ef754ba706de92
Source dataset
uspto-grants-2001_04
Patent number
US06218381B1

Reaction notes

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