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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15148Generated: October 30, 2026

Hydrochloric Acid → HCID 67527302, compound

https://huagongshe.com/reaction/15148

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantButyl 3-(1-{[4-(methyloxy)phenyl]methyl}-3,6-dioxo-1,2,3,6-tetrahydro-4-pyridazinyl)propanoateHCID 67527270—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67527302HCID 6752730270%

Reaction Conditions

Temperature-30 °C

Reaction Steps

Butyl 3-(1-{[4-(methyloxy)phenyl]methyl}-3,6-dioxo-1,2,3,6-tetrahydro-4-pyridazinyl)propanoate (0.43 g, 1.19 mmol) was dissolved in dry THF (20 ml). The solution under argon was cooled to −30° C., treated dropwise with a 1M solution of lithium aluminium hydride in THF (1.4 ml, 1.4 mmol), allowed to warm gradually to 0° C. and stirred in an ice bath for 30 minutes. 2M Hydrochloric acid was added until the pH was 3 and the mixture was partitioned between water and ethyl acetate. The aqueous was re-extracted with ethyl acetate and the combined organic solution dried and evaporated. The resulting solid was triturated under ethyl acetate, filtered off, washed with ethyl acetate and dried under vacuum to give the product (241 mg, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732460B2
Source datasetuspto-grants-2010_06
ORD IDord-140ce4af943b4dffa056aaa3bc75cc28
Source noteuspto-grants-2010_06