Hydrocodone → Codeine

HRID 496801

Reaction equation

[CH3:1][N:2]1[C@@H:19]2[CH2:20][C:7]3[CH:8]=[CH:9][C:10]([O:21][CH3:22])=[C:11]4[O:12][C@H:13]5[C:14]([CH2:16][CH2:17][C@@H:18]2[C@:5]5([C:6]=34)[CH2:4][CH2:3]1)=[O:15].[CH3:23][N:24]1[C@@H:41]2[CH2:42][C:29]3[CH:30]=[CH:31][C:32]([O:43][CH3:44])=[C:33]4[O:34][C@H:35]5[C:36]([CH:38]=[CH:39][C@@H:40]2[C@:27]5([C:28]=34)[CH2:26][CH2:25]1)=[O:37].[CH3:45][N:46]1[C@@H:62]2[CH2:63][C:51]3[CH:52]=[CH:53][C:54]([O:66][CH3:67])=[C:55]4[O:56][C@H:57]5[C:58]([O:64][CH3:65])=[CH:59][CH:60]=[C:61]2[C@:49]5([C:50]=34)[CH2:48][CH2:47]1>>[CH3:1][N:2]1[C@@H:19]2[CH2:20][C:7]3[CH:8]=[CH:9][C:10]([O:21][CH3:22])=[C:11]4[O:12][C@H:13]5[C:14]([CH:16]=[CH:17][C@@H:18]2[C@:5]5([C:6]=34)[CH2:4][CH2:3]1)=[O:15].[CH3:23][N:24]1[C@@H:41]2[CH2:42][C:29]3[CH:30]=[CH:31][C:32]([O:43][CH3:44])=[C:33]4[O:34][C@H:35]5[C@@H:36]([OH:37])[CH:38]=[CH:39][C@@H:40]2[C@:27]5([C:28]=34)[CH2:26][CH2:25]1.[CH3:45][N:46]1[C@@H:62]2[CH2:63][C:51]3[CH:52]=[CH:53][C:54]([O:66][CH3:67])=[C:55]4[O:56][C@H:57]5[C:58]([O:64][CH3:65])=[CH:59][CH:60]=[C:61]2[C@:49]5([C:50]=34)[CH2:48][CH2:47]1

Participants

Reactant 3

HCID 5284569Hydrocodone

HCID 5324289Thebaine

HCID 5459910Codeinone

Product 3

HCID 5284371Codeine

HCID 5324289Thebaine

HCID 5459910Codeinone

Procedure

Hydrocodone has been prepared by reduction of codeinone (Arch. Pharm (1920), 258, 295; J. Am Chem. Soc (1950), 72, 3247, U.S. Pat. No. 5,571,685) or thebaine (DE Pat. No. 441,613). However, since codeinone is obtained by oxidation of codeine in low to moderate yields, and thebaine is a relatively scarce alkaloid, these methods have little practical value.

Sources & evidence

ORD record: ord-c46228bdbd2a46d990394e87ee0a0f24
Source dataset: uspto-grants-2005_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06946556B1

Linked notes

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