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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1047639Generated: October 29, 2026

Methanol → 3-(2-Hydroxypropan-2-yl)-1-(thiophen-3-yl)-1H-indazole-6-carboxylic acid

https://huagongshe.com/reaction/1047639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 3-(2-hydroxypropan-2-yl)-1-(thiophen-3-yl)-1H-indazole-6-carboxylateHCID 66661520—
SolventTetrahydrofuranHCID 8028—
Product3-(2-Hydroxypropan-2-yl)-1-(thiophen-3-yl)-1H-indazole-6-carboxylic acidHCID 6666145193%

Reaction Conditions

Temperature50 °C

Reaction Steps

Methyl 3-(2-hydroxypropan-2-yl)-1-(thiophen-3-yl)-1H-indazole-6-carboxylate (909.8 mg, 2.88 mmol) was dissolved in tetrahydrofuran (17.25 mL) and methanol (11.50 mL) at 25° C. 1M sodium hydroxide (11.50 mL, 11.50 mmol) was added and the reaction mixture heated to 50° C. The reaction mixture was allowed to stir for 15 min. The reaction was stopped, cooled to room temperature, quenched by addition of concentrated hydrochloric acid (0.950 mL), and concentrated under reduced pressure. The title compound (804.8 mg, 2.66 mmol, 93% yield) was recovered as a light orange/white solid. LC-MS: [M+1]=303.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569512B2
Source datasetuspto-grants-2013_10
ORD IDord-b7f5516a909343a783c7a5d6fd74e1e5
Source noteuspto-grants-2013_10