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Hydrogen Peroxide → (S)-4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-alpha, alpha-dimethylbenzeneacetic acid, ethyl ester

HRID 263735
Notes
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Reaction equation

HRID 263735 reaction equation
B(Cl)([C@H]1[C@H](C)[C@H]2C(C)(C)[C@@H](C2)C1)[C@H]1[C@H](C)[C@@H]2C(C)(C)[C@@H](C2)C1.[OH:23][C:24]([C:56]1[CH:61]=[CH:60][CH:59]=[CH:58][CH:57]=1)([C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1)[CH:25]1[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][CH2:33][C:34]([C:36]2[CH:41]=[CH:40][C:39]([C:42]([CH3:49])([CH3:48])[C:43]([O:45][CH2:46][CH3:47])=[O:44])=[CH:38][CH:37]=2)=[O:35])[CH2:27][CH2:26]1.O.OO>O1CCCC1>[OH:23][C:24]([C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1)([C:56]1[CH:61]=[CH:60][CH:59]=[CH:58][CH:57]=1)[CH:25]1[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][CH2:33][C@@H:34]([C:36]2[CH:41]=[CH:40][C:39]([C:42]([CH3:48])([CH3:49])[C:43]([O:45][CH2:46][CH3:47])=[O:44])=[CH:38][CH:37]=2)[OH:35])[CH2:27][CH2:26]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 784Hydrogen PeroxideHCID 962WaterHCID 9958564Ethyl 4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]-alpha,alpha-dimethylbenzeneacetateHCID 20642586(-)-B-chlorodiisopinocamphenylboran

Product 1

HCID 12074743(S)-4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-alpha, alpha-dimethylbenzeneacetic acid, ethyl ester

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

Dissolve (-)-B-chlorodiisopinocamphenylborane (2.5 g, 7.8 mmol) in anhydrous tetrahydrofuran (5 mL). Add a solution of 4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]-α,α-dimethylbenzeneacetic acid, ethyl ester (2 g, 3.54 mmol) in anhydrous tetrahydrofuran (5 mL). Stir at room temperature for 3 days and cool to 0° C. Add water (1 mL) and 30% hydrogen peroxide (2 mL) and stir for 20 minutes. Add methylene chloride (30 mL) and wash with brine (30 mL), then aqueous sodium hydrogen carbonate (30 mL), then brine (30 mL). Dry (MgSO4), evaporate the solvent in vacuo and purify by chromatography to give the title compound.

Workup

  1. temperaturecool to 0° C
  2. washAdd methylene chloride (30 mL) and wash with brine (30 mL)
  3. dry with materialDry (MgSO4)
  4. customevaporate the solvent in vacuo
  5. custompurify by chromatography

Sources & evidence

ORD record
ord-0d51c1f9f75643aaa30bd49bc433e0da
Source dataset
uspto-grants-1997_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05644061

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes