Diphosgene → HCID 57259964, compound

HRID 1974915Notes

Reaction equation

HRID 1974915 reaction equation
[OH:1][C@@H:2]([CH2:13][CH:14]([CH3:16])[CH3:15])[C:3]([O:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:4].[Cl:17][C:18](OC(Cl)(Cl)Cl)=[O:19]>O1CCCC1>[Cl:17][C:18]([O:1][C@@H:2]([CH2:13][CH:14]([CH3:16])[CH3:15])[C:3]([O:5][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)=[O:4])=[O:19]

Participants

4

Reactant 2

HCID 10426DiphosgeneHCID 10998605HCID 10998605, compound

Product 1

HCID 57259964HCID 57259964, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of benzyl (2S)-2-hydroxy-4-methylvalerate (1.00 g) in tetrahydrofuran (20 ml) was added trichloromethyl chloroformate (0.55 ml) at room temperature. The solution was refluxed for 11 hours and the solvent was removed by evaporation at atmospheric pressure to give benzyl (2S)-2-chlorocarbonyloxy-4-methylvalerate (1.26 g) as an oil.

Workup

  1. temperatureThe solution was refluxed for 11 hours
  2. customthe solvent was removed by evaporation at atmospheric pressure

Sources & evidence

ORD record
ord-a4902f109d804d4da6dede6db9ec23b2
Source dataset
uspto-grants-1994_02
Patent number
US05284828

Reaction notes

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