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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 260072Generated: October 26, 2026

Acetic Acid → 5-[[3-Methoxy-2-(phenylmethoxy)phenyl]methylene]-2,4-imidazolidinedione

https://huagongshe.com/reaction/260072

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantBeta-AlanineHCID 239—
ReactantHydantoinHCID 10006—
Reactant2-(Benzyloxy)-3-methoxybenzaldehydeHCID 1268087—
SolventWaterHCID 962—
Product5-[[3-Methoxy-2-(phenylmethoxy)phenyl]methylene]-2,4-imidazolidinedioneHCID 5425109184%

Reaction Steps

A solution of 96.90 g (0.40 mole) of 2-benzyloxy-3-methoxybenzaldehyde, 48.04 g (0.48 mole) of hydantoin, 8.02 g (0.09 mole) of β-alanine, and 200 mL of glacial acetic acid is stirred at reflux for 6 hours. Water (500 mL) is added and the separated solid is filtered, washed well with water, methanol, and then ether; wt 109.00 g (84% yield); mp 210°-212° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05525614
Source datasetuspto-grants-1996_06
ORD IDord-b043e775c0b04d1bad8d7c5c100b6038
Source noteuspto-grants-1996_06