Ammonium Hydroxide → HCID 12298215, compound

HRID 1973779Notes

Reaction equation

HRID 1973779 reaction equation
[CH2:1]([O:3][CH2:4][C:5]1([NH:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[CH2:10][CH2:9][N:8]([CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:7][CH2:6]1)[CH3:2].[C:25]([O:29][C:30](=[O:33])[CH2:31]C)(=[O:28])[CH2:26][CH3:27].[OH-:34].[NH4+]>>[C:30]([OH:29])(=[O:33])[C:31]([OH:3])=[O:34].[CH2:1]([O:3][CH2:4][C:5]1([N:18]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:25](=[O:28])[CH2:26][CH3:27])[CH2:6][CH2:7][N:8]([CH2:11][C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH2:9][CH2:10]1)[CH3:2]

Participants

4

Procedure

A mixture of 17.5 parts of 4-(ethoxymethyl)-N-phenyl-1-(phenylmethyl)-4-piperidinamine and 36 parts of propionic acid anhydride is stirred and refluxed for 6 hours. The reaction mixture is poured onto ice-water and the whole is basified with ammonium hydroxide. The product is extracted with trichloromethane. The extract is washed with water, dried, filtered and evaporated. The residue is converted into the ethanedioate salt in 2-propanone. The salt is filtered off and crystallized from 2-propanol (135 parts). The product is filtered off and dried, yielding N-[4-(ethoxymethyl)-1-(phenylmethyl)-4-piperidinyl]-N-phenylpropanamide ethanedioate; mp. 181.2° C.

Workup

  1. temperaturerefluxed for 6 hours
  2. additionThe reaction mixture is poured onto ice-water
  3. extractionThe product is extracted with trichloromethane
  4. washThe extract is washed with water
  5. customdried
  6. filtrationfiltered
  7. customevaporated
  8. filtrationThe salt is filtered off
  9. customcrystallized from 2-propanol (135 parts)
  10. filtrationThe product is filtered off
  11. customdried

Sources & evidence

ORD record
ord-991827f884e24a8ca14061d8ef85ec14
Source dataset
uspto-grants-1976_12
Patent number
US03998834

Reaction notes

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