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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874943Generated: November 2, 2026

Methanol → HCID 68480834, compound

https://huagongshe.com/reaction/1874943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 68485442HCID 68485442—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68480834HCID 6848083441.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

A methanol solution of ethyl 5-{[2-(methylthio)ethyl]oxy}-1H-indole-2-carboxylate (0.099 g, 0.356 mmol) was treated with 1 N LiOH (4 mL). The reaction mixture turned cloudy and THF was added until the cloudiness disappeared. The reaction was heated to 70° C. until TLC showed consumption of the starting material. The reaction mixture was partitioned between EtOAc and water and the basic layer was separated. The basic layer was acidified with conc. HCl and extracted with EtOAc, the layers were separated and the EtOAc was evaporated to afford the title compound (0.037 g, 41%) as a white solid. 1H NMR (400 MHz, Acetone-d6) δ ppm 10.74 (br. s., 1H), 7.44 (d, 1H), 7.17 (d, 1H), 7.11 (s, 1H), 6.96 (dd, 1H), 4.19 (t, 2 H), 2.88 (t, 2H), 2.20 (s, 3H). LCMS: m/z=251.9 (M−1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304419B2
Source datasetuspto-grants-2012_11
ORD IDord-686fc260005e480aae287faf1e6122fa
Source noteuspto-grants-2012_11