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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 247885Generated: October 26, 2026

1-Methylhydantoin → 5-[[4-Hydroxy-3,5-bis(1-methylethyl)phenyl]methylene]-1-methyl-2,4-imidazolidinedione

https://huagongshe.com/reaction/247885

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylhydantoinHCID 69217—
Reactant4-Hydroxy-3,5-bis(isopropyl)benzaldehydeHCID 82712—
Product5-[[4-Hydroxy-3,5-bis(1-methylethyl)phenyl]methylene]-1-methyl-2,4-imidazolidinedioneHCID 5428405111%

Reaction Steps

Prepared according to the procedure described in Example 92 using 3,5-diisopropyl-4-hydroxybenzaldehyde (2.7 g, 13 mmoles) and 1-methyl hydantoin (1.4 g, 12 mmoles). Recrystallization from acetonitrile gave the pure product (0.4 g), mp 197°-208° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05208250
Source datasetuspto-grants-1993_05
ORD IDord-aebed7088a92478092afa826da1265d1
Source noteuspto-grants-1993_05