Hydrochloric Acid → HCID 57031182, compound

HRID 478708Notes

Reaction equation

HRID 478708 reaction equation
[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([CH2:7][CH2:8][C:9]2=O)=[CH:5][CH:4]=1.[NH:13]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH2:15][C:14]1=[O:22].N1CCCCC1.Cl>CN(C)C=O>[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([CH2:7][CH2:8][C:9]2=[C:15]2[C:16]3[C:21](=[CH:20][CH:19]=[CH:18][CH:17]=3)[NH:13][C:14]2=[O:22])=[CH:5][CH:4]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8082PiperidineHCID 321710OxindoleHCID 3340366-Methoxy-1-Indanone

Product 1

HCID 57031182HCID 57031182, compoundYield 33.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of 0.5 g 6-methoxy-1-indanone, 1.23 g oxindole and 2.7 ml piperidine in 4 ml of dimethylforamide was heated in a sealed tube 130° C. for 3 days to yield a greenish-black suspension. The mixture was added to 1N hydrochloric acid solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated. The resulting solid was precipitated from methylene chloride/hexanes (3×) to afford 290 mg 3-(6-methoxyindan-1-ylidene)-1,3-dihydroindol-2-one as a yellowish-brown solid.

Workup

  1. customto yield a greenish-black suspension
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated
  6. customThe resulting solid was precipitated from methylene chloride/hexanes (3×)

Sources & evidence

ORD record
ord-6554ce0d08cd46f98059bb87c74ba18e
Source dataset
uspto-grants-2003_11
Patent number
US06642251B1

Reaction notes

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