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Acetic Acid → Methyl 3,3-dicyclohexyl-2-hydroxy-3-methoxypropionate

HRID 1584622
Notes
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Reaction equation

HRID 1584622 reaction equation
[OH:1][CH:2]([C:7]([O:20][CH3:21])([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:3]([O:5][CH3:6])=[O:4].C(O)(=O)C>CO.O1CCOCC1>[CH:8]1([C:7]([CH:14]2[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]2)([O:20][CH3:21])[CH:2]([OH:1])[C:3]([O:5][CH3:6])=[O:4])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 176Acetic AcidHCID 10541193Methyl 2-hydroxy-3-methoxy-3,3-diphenylpropanoate

Product 1

HCID 12073750Methyl 3,3-dicyclohexyl-2-hydroxy-3-methoxypropionateYield 97%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 312751,4-DioxaneSolvent

Procedure

10 g (34.9 mmol) of methyl 2-hydroxy-3-methoxy-3,3-diphenylpropionate were dissolved in 50 ml each of methanol and glacial acetic acid, 1 ml of RuO(OH)2 in dioxane was added, and hydrogenation was carried out with H2 in an autoclave at 100° C. under 100 bar for 30 h. The catalyst was filtered off, the mixture was concentrated, mixed with ether and washed with NaCl solution, and the organic phase was dried and concentrated. 10.1 g of methyl 3,3-dicyclohexyl-2-hydroxy-3-methoxypropionate were obtained as an oil.

Workup

  1. filtrationThe catalyst was filtered off
  2. concentrationthe mixture was concentrated
  3. additionmixed with ether
  4. washwashed with NaCl solution
  5. customthe organic phase was dried
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-ebec55b6b58e441cbd918a6fac86e70e
Source dataset
uspto-grants-1999_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05932730

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes