Hydrochloric Acid → Oxycodone Hydrochloride

HRID 515580Notes

Reaction equation

HRID 515580 reaction equation
[CH3:1][N:2]1[C@@H:19]2[CH2:20][C:7]3[CH:8]=[CH:9][C:10]([O:22][CH3:23])=[C:11]4[O:12][C@H:13]5[C:14]([CH2:16][CH2:17][C@:18]2([OH:21])[C@:5]5([C:6]=34)[CH2:4][CH2:3]1)=[O:15].[ClH:24].CC(O)C>O.C(O)(=O)C>[CH3:1][N:2]1[C@@H:19]2[CH2:20][C:7]3[CH:8]=[CH:9][C:10]([O:22][CH3:23])=[C:11]4[O:12][C@H:13]5[C:14]([CH2:16][CH2:17][C@:18]2([OH:21])[C@:5]5([C:6]=34)[CH2:4][CH2:3]1)=[O:15].[ClH:24]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 3776IsopropanolHCID 5284603Oxycodone

Product 1

HCID 5462350Oxycodone HydrochlorideYield 93%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 962WaterSolvent

Procedure

The first portion of purified Oxycodone base lot P (13.56 g, 43.0 mmol) was dissolved (in 80-mL beaker over 15 minutes) in a mixture of water (13 mL) and acetic acid (3 mL). Hydrochloric acid (10.41 mol/kg, 5.0 g, or 51.6 mmol) was added to the solution over 5 minutes. Stirring was continued for another 40 minutes and IPA (55 mL) was added over 15 minutes. Stirring was continued for another 30 minutes. Precipitated product was filtered off, washed on filter with IPA (2×20 ml) and acetone (2×20 mL), dried on filter providing 14.74 g oxycodone HCl (39.86 mmol, 93% yield on OC base purified) lot Q.

Workup

  1. stirringStirring
  2. waitwas continued for another 30 minutes
  3. filtrationPrecipitated product was filtered off
  4. washwashed
  5. filtrationon filter with IPA (2×20 ml) and acetone (2×20 mL)
  6. customdried
  7. filtrationon filter

Sources & evidence

ORD record
ord-e227ff45804147d6a988e793d378c8b5
Source dataset
uspto-grants-2015_08
Patent number
US09108976B2

Reaction notes

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