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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1429623Generated: October 31, 2026

Ethanol → 1262803-60-0

https://huagongshe.com/reaction/1429623

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
ReactantMethyl 5-chloropyrazine-2-carboxylateHCID 406081—
ReactantSodium ethoxideHCID 2723922—
Product1262803-60-0HCID 66869685—

Reaction Steps

A stirred solution of methyl 5-chloropyrazine-2-carboxylate (0.50 g) in ethanol (10 mL) was cooled to 0° C., and sodium ethoxide (21% w/w solution in ethanol, 1 mL) was added over 10 mins. After allowing to warm to RT and stir for 2 h, water (100 mL) was added and the mixture extracted with EtOAc (2×150 mL). The combined organic portions were dried over MgSO4 and evaporated to afford the title compound. (0.65 g, purity approx. 85%). 1H NMR (400 MHz, CDCl3) δ ppm 1.45 (t, J=7.1 Hz, 3H), 1.46 (t, J=7.1 Hz, 3 H), 4.48 (q, J=7.1 Hz, 2 H), 4.49 (q, J=7.1 Hz, 2 H), 8.28 (d, J=1.3 Hz, 1 H), 8.88 (d, J=1.3 Hz, 1 H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08940734B2
Source datasetuspto-grants-2015_01
ORD IDord-1f43d70a039e455abb51c0dcb881406c
Source noteuspto-grants-2015_01