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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464646Generated: October 26, 2026

Beta-Alanine → 5-[(3,5-Dimethoxy-4-hydroxyphenyl)methylene]-2,4-imidazolidinedione

https://huagongshe.com/reaction/1464646

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
ReactantSyringaldehydeHCID 8655—
ReactantHydantoinHCID 10006—
Product5-[(3,5-Dimethoxy-4-hydroxyphenyl)methylene]-2,4-imidazolidinedioneHCID 408873375.7%

Reaction Steps

Prepared according to the procedure described in Example 90 using 3,5-dimethoxy-4-hydroxybenzaldehyde (5.6 g, 30 mmoles), hydantoin (3.0 g, 30 mmoles), and β-alanine (1.4 g, 16 mmoles), to afford the pure product (6.0 g), mp 296°-297° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05306822
Source datasetuspto-grants-1994_04
ORD IDord-0ba50065639448d8b561e558a3cb3bc2
Source noteuspto-grants-1994_04