Benzyl Alcohol → 4-Methylbenzene-1-sulfonic acid--benzyl D-leucinate (1/1)

HRID 1272536Notes

Reaction equation

HRID 1272536 reaction equation
[CH2:1]([OH:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:9][C@@H:10]([C:15](O)=[O:16])[CH2:11][CH:12]([CH3:14])[CH3:13].O.[C:19]1([CH3:29])[CH:24]=[CH:23][C:22]([S:25]([OH:28])(=[O:27])=[O:26])=[CH:21][CH:20]=1.O>C1C=CC=CC=1>[S:25]([C:22]1[CH:23]=[CH:24][C:19]([CH3:29])=[CH:20][CH:21]=1)([OH:28])(=[O:27])=[O:26].[CH2:1]([O:8][C:15](=[O:16])[C@@H:10]([CH2:11][CH:12]([CH3:14])[CH3:13])[NH2:9])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 244Benzyl AlcoholHCID 962WaterHCID 439524D-LeucineHCID 521998p-Toluenesulfonic acid monohydrate

Product 1

HCID 446299294-Methylbenzene-1-sulfonic acid--benzyl D-leucinate (1/1)Yield 99%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

To benzyl alcohol (8.2 g) dissolved in benzene (30 mL) was added D-leucine (5.0 g) and p-toluenesulfonic acid monohydrate (8.0 g). The reaction was warmed to reflux with removal of water overnight. Once TLC indicated consumption of starting material, the reaction was cooled, and the resulting solid was filtered and washed with EtOAc to give the title compound as a white powder (14.26 g, 99%).

Workup

  1. temperatureThe reaction was warmed
  2. customconsumption of starting material
  3. temperaturethe reaction was cooled
  4. filtrationthe resulting solid was filtered
  5. washwashed with EtOAc

Sources & evidence

ORD record
ord-9f38a6dfe5ae4d749d6bf0490358ff2b
Source dataset
uspto-grants-2007_04
Patent number
US07208517B1

Reaction notes

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