Hydrochloric Acid → HCID 67780906, compound

HRID 2260149Notes

Reaction equation

HRID 2260149 reaction equation
[OH-].[Na+].[CH2:3]1[C@H:8]2[C:9]3[CH:21]=[CH:20][CH:19]=[CH:18][C:10]=3[CH2:11][C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[N:7]2[CH2:6][CH2:5][N:4]1[CH2:22][CH2:23][CH2:24][C:25]([O:27]CC)=[O:26].[ClH:30]>C(O)C>[ClH:30].[CH2:3]1[C@H:8]2[C:9]3[CH:21]=[CH:20][CH:19]=[CH:18][C:10]=3[CH2:11][C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[N:7]2[CH2:6][CH2:5][N:4]1[CH2:22][CH2:23][CH2:24][C:25]([OH:27])=[O:26]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 15287790HCID 15287790, compound

Product 1

HCID 67780906HCID 67780906, compoundYield 76%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

20 ml of a 10% w/v aqueous solution of sodium hydroxide were added to a solution of 14.34 g of ethyl (R)-4-(1,2,3,4,10,14b-hexahydrodibenzo[c,f]pyrazino[1.2-a]azepin-2-yl)butyrate (prepared as described in Example 5") in 100 ml of ethanol, and the resulting mixture was stirred at room temperature for 1 hour. At the end of this time, the pH of the reaction mixture was adjusted to a value of 2 by the addition of 10% w/v aqueous hydrochloric acid, and the solvent was removed by distillation under reduced pressure. The crystals which precipitated were collected by filtration and dried, to give the title compound, melting at 265°-268° C. (with decomposition), in a 76% yield.

Workup

  1. additionAt the end of this time, the pH of the reaction mixture was adjusted to a value of 2 by the addition of 10%
  2. customthe solvent was removed by distillation under reduced pressure
  3. customThe crystals which precipitated
  4. filtrationwere collected by filtration
  5. customdried

Sources & evidence

ORD record
ord-845d02361f32441cb86e9af3510fe563
Source dataset
uspto-grants-1995_12
Patent number
US05476848

Reaction notes

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