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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 715535Generated: October 30, 2026

Sodium ethoxide → Ethyl (6-ethoxy-4-methylpyridazin-3-yl)carbamate

https://huagongshe.com/reaction/715535

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
ReactantEthyl (6-chloro-4-methylpyridazin-3-yl)carbamateHCID 86717594—
ProductEthyl (6-ethoxy-4-methylpyridazin-3-yl)carbamateHCID 8671759569.3%

Reaction Conditions

Temperature110 °C

Reaction Steps

A 20 mL microwavable vial was charged with ethyl (6-chloro-4-methylpyridazin-3-yl)carbamate (550 mg, 2.55 mmol) and sodium ethoxide (3.11 mL, 17.85 mmol), then stirred and heated at 110° C. for 12 h. The reaction mixture was then concentrated and partitioned between ammonium chloride and DCM. The layers were separated and the aqueous layers were washed with DCM (2×). The combined organic layers were washed with water, brine, and eluted through a phase separator. The organic layers were concentrated to afford ethyl (6-ethoxy-4-methylpyridazin-3-yl)carbamate (398 mg, 65.8% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09187464B2
Source datasetuspto-grants-2015_11
ORD IDord-760ade482e334f1bbd6ea0b30300b5a0
Source noteuspto-grants-2015_11