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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 337844Generated: October 30, 2026

Hydrochloric Acid → 2-(3-Aminopyridazin-4-yl)cyclohex-2-en-1-one

https://huagongshe.com/reaction/337844

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-(1,4-Dioxaspiro[4.5]dec-6-en-6-yl)pyridazin-3-amineHCID 89963438—
SolventTetrahydrofuranHCID 8028—
Product2-(3-Aminopyridazin-4-yl)cyclohex-2-en-1-oneHCID 8996305299%

Reaction Steps

The reaction and aftertreatment were conducted in the same manner as in Example 67c by using the crude 4-(1,4-dioxaspiro[4.5]dec-6-en-6-yl)pyridazin-3-amine prepared in Example 82c, 2 M hydrochloric acid (0.37 mL) and THF (0.92 mL), to yield the title compound (69 mg, 99%, 2 steps) as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889741B2
Source datasetuspto-grants-2014_11
ORD IDord-634844d5f118469f94b3e0d13a3fb54f
Source noteuspto-grants-2014_11