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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 660975Generated: October 30, 2026

Water → HCID 59355980, compound

https://huagongshe.com/reaction/660975

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 67484805HCID 67484805—
SolventDimethylformamideHCID 6228—
ProductHCID 59355980HCID 5935598072%

Reaction Steps

A solution of 5-(1-ethyl-1-hydroxymethyl-propyl)-thiophene-2-carboxylic acid (0.750 g, 3.28 mmol) in DMF (16.0 mL) is treated with K2CO3 (0.684 g, 6.00 mmol), iodomethane (0.27 mL, 4.34 mmol), and stirred at rt overnight. The mixture is poured into H2O (30 mL) and extracted with EtOAc (3×30 mL). The combined extracts are washed with H2O, brine, dried over MgSO4, filtered, and concentrated. The residue is loaded onto silica gel and eluted with hexanes using a gradient of 0% to 75% EtOAc to give 5-(1-ethyl-1-hydroxymethyl-propyl)-thiophene-2-carboxylic acid methyl ester (0.571 g, 72%) as a clear syrup. MS (ES): 243.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08084489B2
Source datasetuspto-grants-2011_12
ORD IDord-a6003d5dde404144b0da55033520b89d
Source noteuspto-grants-2011_12