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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1735008Generated: October 30, 2026

Methanol → HCID 178493811, compound

https://huagongshe.com/reaction/1735008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantHCID 67729602HCID 67729602—
CatalystHydrochloric AcidHCID 313—
SolventWaterHCID 962—
SolventSodium BicarbonateHCID 516892—
ProductHCID 178493811HCID 17849381165%

Reaction Steps

5-Methoxy-3-[[2-(tetrahydro-2H-pyran-2-yl)-3-(trifluoromethyl)-1H-pyrazol-5-yl]oxy]pyridazine (Compound No. 36, 0.75 g (0.0021 mole), 4 drops of 37% hydrochloric acid, and 10 mL of methanol were heated and held at 50° C. for 1 hour. The mixture was cooled, diluted with 30 ml water and neutralized with sodium bicarbonate. Filtration gave 5-methoxy-3-[[3-(trifluoromethyl)-1H-pyrazol-5-yl]oxy]pyridazine (0.36 g, 65% yield) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05536701
Source datasetuspto-grants-1996_07
ORD IDord-c7f814b5d9274e4dbbcf93b3e7f6272b
Source noteuspto-grants-1996_07