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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 232815Generated: October 26, 2026

Formaldehyde → 1-(2-Ethyl-4-methylimidazolylmethyl)-2-naphthol

https://huagongshe.com/reaction/232815

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant2-NaphtholHCID 8663—
ReactantHCID 178437635HCID 178437635—
SolventIsopropanolHCID 3776—
Product1-(2-Ethyl-4-methylimidazolylmethyl)-2-naphtholHCID 17843761485%

Reaction Steps

To a 35% solution of 2-ethyl-4-methylimidazole (110g, 1 mole) and 2-naphthol (144 g, 1 mole) in isopropanol, formaline (37% aqueous solution, 1 mole of CH2O) is added over a period of 15 minutes at room temperature, followed by three hours of refluxing at 82°-84° C. The product (a white powder) is obtained in a yield of 85%, with a melting point of 166° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05591811
Source datasetuspto-grants-1997_01
ORD IDord-738efcbc3eb245419d2f0d76fb30580d
Source noteuspto-grants-1997_01