Hydrochloric Acid → HCID 59376005, compound

HRID 661490Notes

Reaction equation

HRID 661490 reaction equation
[CH3:1][C:2]1[NH:3][C:4]2[C:5](=[O:16])[CH2:6][CH2:7][CH2:8][C:9]=2[C:10]=1[C:11]([O:13]CC)=[O:12].Cl>[Li+].[OH-]>[CH3:1][C:2]1[NH:3][C:4]2[C:5](=[O:16])[CH2:6][CH2:7][CH2:8][C:9]=2[C:10]=1[C:11]([OH:13])=[O:12]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 59376018ethyl 2-methyl-7-oxo-4,5,6,7-tetrahydro-1H-indole-3-carboxylate

Product 1

HCID 59376005HCID 59376005, compoundYield 74%

Reagents, catalysts & solvents 1

HCID 3939Lithium HydroxideSolvent

Procedure

ethyl 2-methyl-7-oxo-4,5,6,7-tetrahydro-1H-indole-3-carboxylate (S3) 1.0 g (4.5 mmol) in 25 ml aq. LiOH solution (1 mol/L) was stirred for 48 hours at 70° C. The mixture was poured into the ice water, then acidified with 6 mol/L HCl to pH 1 to 2. The gray solid was collected by filtration, washed with water and dried in vacuum condition to give 0.64 g (74%) of the titled compound.

Workup

  1. filtrationThe gray solid was collected by filtration
  2. washwashed with water
  3. customdried in vacuum condition

Sources & evidence

ORD record
ord-10fdbaf725924729932594e4a9be5044
Source dataset
uspto-grants-2011_12
Patent number
US08084621B2

Reaction notes

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