Sodium hydride → (cis)-4-(4-(3,4-Dimethoxyphenyl)-1-oxo-4a,5,6,7,8,8a-hexahydro-1H-phthalazin-2-ylmethyl)-benzoic acid

HRID 1871406Notes

Reaction equation

HRID 1871406 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[C@H:20]3[C@H:15]([CH2:16][CH2:17][CH2:18][CH2:19]3)[C:14](=[O:21])[NH:13][N:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].Cl[CH2:23][C:24]1[CH:32]=[CH:31][C:27]([C:28]([OH:30])=[O:29])=[CH:26][CH:25]=1.C(N1N=C(C2C=CC(OC)=C(OC)C=2)[C@H]2[C@H](CCCC2)C1=O)C1C=CC=CC=1.[H-].[Na+]>>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[C@H:20]3[C@H:15]([CH2:16][CH2:17][CH2:18][CH2:19]3)[C:14](=[O:21])[N:13]([CH2:23][C:24]3[CH:32]=[CH:31][C:27]([C:28]([OH:30])=[O:29])=[CH:26][CH:25]=3)[N:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Participants

5

Reactant 4

HCID 24758Sodium hydrideHCID 742344-(Chloromethyl)benzoic acidHCID 10913208(cis)-4-(3,4-Dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydro-2H-phthalazin-1-oneHCID 70001660(cis)-2-Benzyl-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydro-2H-phthalazin-1-one

Product 1

HCID 86755615(cis)-4-(4-(3,4-Dimethoxyphenyl)-1-oxo-4a,5,6,7,8,8a-hexahydro-1H-phthalazin-2-ylmethyl)-benzoic acid

Procedure

Prepared from compound 1 and 4-chloromethylbenzoic acid as described for compound 78 using 12 mmol of sodium hydride instead of 6 mmol. After evaporating the reaction mixture, the residue was partitioned between aqueous sodium carbonate and ethyl acetate. The aqueous solution was acidified with hydrochloric acid and extracted with ethyl acetate. The organic layer was dried over magnesium sulfate and evaporated. The compound was purified by chromatography (ethyl acetate) and crystallized from diethyl ether. M.p. 135°-139° C.

Workup

  1. customAfter evaporating the reaction mixture
  2. customthe residue was partitioned between aqueous sodium carbonate and ethyl acetate
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over magnesium sulfate
  5. customevaporated
  6. customThe compound was purified by chromatography (ethyl acetate)
  7. customcrystallized from diethyl ether

Sources & evidence

ORD record
ord-b541435445cf4d1e943644f4b79bdd45
Source dataset
uspto-grants-2000_08
Patent number
US06103718

Reaction notes

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