Phenyl chloroformate → HCID 19801109, compound

HRID 1646644Notes

Reaction equation

HRID 1646644 reaction equation
[O:1]1[CH:3]([CH2:4][CH:5]=[C:6]([CH3:8])[CH3:7])[C:2]1([CH:10]1[CH:15]([O:16][CH3:17])[CH:14]([OH:18])[CH2:13][CH2:12][C:11]1([CH2:20][S:21][CH3:22])[OH:19])[CH3:9].CN(C1C=CC=CN=1)C.Cl[C:33]([O:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)=[O:34]>ClCCl.C(OCC)(=O)C>[O:35]([C:33]([O:18][CH:14]1[CH2:13][CH2:12][C:11]([CH2:20][S:21][CH3:22])([OH:19])[CH:10]([C:2]2([CH3:9])[O:1][CH:3]2[CH2:4][CH:5]=[C:6]([CH3:7])[CH3:8])[CH:15]1[O:16][CH3:17])=[O:34])[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1

Participants

6

Reactant 3

HCID 15891Phenyl chloroformateHCID 218852-DimethylaminopyridineHCID 19801008HCID 19801008, compound

Product 1

HCID 19801109HCID 19801109, compoundYield 81%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

In dichloromethane (2 ml) were dissolved 2-(1,2-epoxy-1,5-dimethyl-4-hexenyl)-3-methoxy-1-methylthiomethyl-1,4-cyclohexanediol (200 mg) and dimethylaminopyridine (115 mg). To the solution was added, under ice-cooling, phenyl chloroformate (95 μl ), and the mixture was stirred for 16 hours. The reaction mixture was diluted with ethyl acetate (70 ml), washed with a saturated aqueous solution of sodium hydrogencarbonate and a saturated aqueous saline solution, followed by drying over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the residue was purified by means of a silica gel column chromatography (carrier 10 g, developing solvent: ethyl acetate - hexane=1:4) to afford 4-O-phenoxycarbonyl-2-(1,2-epoxy-1,5-dimethyl-4-hexenyl)-3-methoxy-1-methylthiomethyl-1,4-cyclohexanediol (222mg: yield 81%) as a colorless oily product.

Workup

  1. additionTo the solution was added, under ice-
  2. temperaturecooling
  3. washwashed with a saturated aqueous solution of sodium hydrogencarbonate
  4. dry with materialby drying over anhydrous magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe residue was purified by means of a silica gel column chromatography (carrier 10 g, developing solvent: ethyl acetate - hexane=1:4)

Sources & evidence

ORD record
ord-1c629fbe60a94007a7afe236c774782d
Source dataset
uspto-grants-1993_01
Patent number
US05180735

Reaction notes

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