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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2118121Generated: October 31, 2026

Potassium Hydroxide → 1-Methyl-5-nitro-3-phenyl-1H-indole-2-carboxylic acid

https://huagongshe.com/reaction/2118121

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
Reactantethyl 1-methyl-5-nitro-3-phenyl-1H-indole-2-carboxylateHCID 69231753—
Product1-Methyl-5-nitro-3-phenyl-1H-indole-2-carboxylic acidHCID 21543518—

Reaction Steps

1-Methyl-5-nitro-3-phenyl-1H-indole-2-carboxylic acid was prepared from ethyl 1-methyl-5-nitro-3-phenyl-1H-indole-2-carboxylate by KOH hydrolysis as a yellowish solid: 1H NMR (DMSO-d6) δ 4.08 (s, 3H, 7.48-7.55 (m, 5H, 7.86 (d, J=9.2 Hz, 1H), 8.21 (dd, J=9.2, 2.3 Hz, 1H, 8.30 (d, J=2.3 Hz, 1H; MS (ESI) m/z 295 [M-H]−; HRMS calcd for C16H13N2O4: 297.0873; found (ESI+): 297.0867; Anal. calcd for C16H12N2O4.0.15H2O: C, 63.32; H, 4.25; N, 9.23. Found: C, 63.34; H, 3.87; N, 9.12.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07442805B2
Source datasetuspto-grants-2008_10
ORD IDord-ee1d392bde86411baa709234f5e10e0e
Source noteuspto-grants-2008_10