Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1943614Generated: November 4, 2026

Lithium hydroxide, monohydrate → HCID 59553060, compound

https://huagongshe.com/reaction/1943614

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactantethyl 2-(4,5,6,7-tetrahydro-1-phenyl-1H-indazol-4-yl)acetateHCID 23112896—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 59553060HCID 5955306055.8%

Reaction Steps

LiOH.H2O (120 mg, 2.85 mmol), dissolved in 1 ml of water, is added to a solution of ethyl 2-(4,5,6,7-tetrahydro-1-phenyl-1H-indazol-4-yl)acetate (808 mg, 2.85 mmol) in methanol (20 mL) and is stirred at room temperature for 1 hour following the reaction by means of TLC. The methanol is evaporated under reduced pressure, the residue is suspended in water and acidified with diluted HCl forming a pulp that is extracted with ethyl acetate. The organic phase is washed with water, dried and evaporated at reduced pressure, giving 2-(4,5,6,7-tetrahydro-1-phenyl-1H-indazol-4-yl)acetic acid (410 mg, 1.59 mmol, 53%, solid).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394797B2
Source datasetuspto-grants-2013_03
ORD IDord-7d939d413116403dbbc36dfe444edad9
Source noteuspto-grants-2013_03