Sodium hydride → HCID 19744894, compound

HRID 1030711Notes

Reaction equation

HRID 1030711 reaction equation
[OH:1][C:2]1[C:7]([CH2:8][CH2:9][CH:10]([CH3:12])[CH3:11])=[C:6]([O:13][CH3:14])[CH:5]=[C:4]([O:15][CH3:16])[C:3]=1[C:17](=[O:32])[CH2:18][CH2:19][C:20]1[CH:25]=[CH:24][C:23]([O:26][CH2:27][O:28][CH3:29])=[C:22]([O:30][CH3:31])[CH:21]=1.[H-].[Na+].Br[CH2:36][C:37]([O:39][CH3:40])=[O:38]>CN(C)C=O>[CH3:14][O:13][C:6]1[CH:5]=[C:4]([O:15][CH3:16])[C:3]([C:17](=[O:32])[CH2:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH2:27][O:28][CH3:29])=[C:22]([O:30][CH3:31])[CH:21]=2)=[C:2]([O:1][CH2:36][C:37]([O:39][CH3:40])=[O:38])[C:7]=1[CH2:8][CH2:9][CH:10]([CH3:12])[CH3:11]

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 60984Methyl bromoacetateHCID 14368069HCID 14368069, compound

Product 1

HCID 19744894HCID 19744894, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Then, 10 ml of dimethylformamide was dropped into a mixture of 2.0 g of 1-(2-hydroxy-4,6-dimethoxy-3-isopentylphenyl)-3-(3-methoxy-4-methoxymethoxyphenyl)-1-propanone and 0.2 g of sodium hydride, and the mixture was stirred for 60 minutes. Then, 0.5 ml of methyl α-bromoacetate was added to the mixture at 0° C., and the mixture was stirred for 45 minutes. After the reaction, the solvent was removed from the reaction liquid mixture by distillation, and the residue was dried under reduced pressure to obtain substantially quantitatively 1-(4,6-dimethoxy-2-methoxycarbonylmethoxy-3-isopentylphenyl)-3-(3-methoxy-4-methoxymethoxyphenyl)-1-propanone in the form of a colorless transparent oil.

Workup

  1. stirringthe mixture was stirred for 45 minutes
  2. customAfter the reaction
  3. customthe solvent was removed from the reaction liquid mixture by distillation
  4. customthe residue was dried under reduced pressure

Sources & evidence

ORD record
ord-2525ad14662c45e2b7f3d4e86b235c10
Source dataset
uspto-grants-1992_04
Patent number
US05106871

Reaction notes

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