Hydrochloric Acid → HCID 19418848, compound

HRID 864408Notes

Reaction equation

HRID 864408 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[NH:17][C:16]([C:21]([O:23]CC)=[O:22])=[CH:15]2)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[K+].Cl>O1CCOCC1.O>[CH2:1]([O:8][C:9]([NH:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[NH:17][C:16]([C:21]([OH:23])=[O:22])=[CH:15]2)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 19418854HCID 19418854, compound

Product 1

HCID 19418848HCID 19418848, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

Ethyl 5-Benzyloxycarbonylaminoindole-2-carboxylate, (PREPARATION 56, 0.76 g) is dissolved in 1,4-dioxane (5.6 ml) and water (0.56 ml). Crushed potassium hydroxide (0.23 g) is added and the reaction is heated to 50° for 5 hr. The reaction is neutralized by adding 4.05 ml of 1N aqueous hydrochloric acid. The reaction is extracted with THF/chloroform (10/90, 3×), saline, dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the title acid, NMR (300 MHz, d4-CD3OD) 7.64, 7.34-7.15, 6.98 and 5.09δ.

Workup

  1. temperaturethe reaction is heated to 50° for 5 hr
  2. extractionThe reaction is extracted with THF/chloroform (10/90, 3×), saline
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-adb01d922a7640999650a463593c9571
Source dataset
uspto-grants-1996_10
Patent number
US05563142

Reaction notes

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