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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 503431Generated: November 4, 2026

Hydrochloric Acid → HCID 59129178, compound

https://huagongshe.com/reaction/503431

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 59129201HCID 59129201—
SolventOxolane--water (1/1)HCID 21881883—
ProductHCID 59129178HCID 59129178100.1%

Reaction Conditions

Temperature50 °C

Reaction Steps

Ethyl 2-methyl-2-(5-nitro-1H-indol-2-yl)propanoate (4.60 g, 16.7 mmol) was dissolved in THF/water (2:1, 30 mL). LiOH.H2O (1.40 g, 33.3 mmol) was added and the mixture was stirred at 50° C. for 3 h. The mixture was made acidic by the careful addition of 3N HCl. The product was extracted with ethylacetate and the combined organic phases were washed with brine and dried over magnesium sulfate to give 2-methyl-2-(5-nitro-1H-indol-2-yl)propanoic acid (4.15 g, 99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776905B2
Source datasetuspto-grants-2010_08
ORD IDord-ca757e28917b4318bc57a72e23b5742f
Source noteuspto-grants-2010_08