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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 649129Generated: October 29, 2026

Formaldehyde → HCID 13235861, compound

https://huagongshe.com/reaction/649129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantMorpholineHCID 8083—
Reactant6-(3-Bromophenyl)pyridazin-3(2H)-oneHCID 12881647—
SolventMethanolHCID 887—
ProductHCID 13235861HCID 1323586154.5%

Reaction Steps

To 20 ml of methanol were added 1 g of 6-(3-bromophenyl)-3(2H)-pyridazinone, 0.13 g of paraformaldehyde and 0.35 g of morpholine, and the resulting mixture was heated under reflux for 2 hours. The reaction mixture was then left to cool, after which the methanol was distilled off under reduced pressure. The residue was recrystallised from a 1:1 by volume mixture of ethyl acetate and hexane, to afford 0.76 g (yield 54%) of the desired Compound No. 26, melting at 110°-111° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04738961
Source datasetuspto-grants-1988_04
ORD IDord-9be77ad02b4a4b8d9fe6a302f5c8c394
Source noteuspto-grants-1988_04