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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1908521Generated: October 28, 2026

Hydrochloric Acid → HCID 59129178, compound

https://huagongshe.com/reaction/1908521

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 numberUS08598181B2
Source datasetuspto-grants-2013_12
ORD IDord-2cbea23de33644f4a7187e5c272e12fd
Source noteuspto-grants-2013_12