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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677800Generated: November 1, 2026

Sodium Hydroxide → Indole-2-carboxylic acid

https://huagongshe.com/reaction/1677800

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 1H-indole-2-carboxylateHCID 70992—
SolventMethanol--water (1/1)HCID 22242641—
ProductIndole-2-carboxylic acidHCID 72899—

Reaction Steps

Add NaOH (82.0 mmol) to methyl indole-2-carboxylate 2 (27.0 mmol) as a suspension in MeOH/H2O (3:1, 160 mL). Stir at rt for 16 h, concentrate, and acidify with HCl. Collect the precipitate by filtration, wash with H2O and dry in vacuuo to afford indole-2-carboxylic acid 3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008340B2
Source datasetuspto-grants-2011_08
ORD IDord-20e922bfa5dc4a4c869081601d2304ba
Source noteuspto-grants-2011_08