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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 127672Generated: October 25, 2026

Dimethylhydantoin → 3-Allyl-5,5-dimethylhydantoin

https://huagongshe.com/reaction/127672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylhydantoinHCID 6491—
ReactantAllyl chlorideHCID 7850—
ReactantPotassium CarbonateHCID 11430—
SolventDimethylformamideHCID 6228—
Product3-Allyl-5,5-dimethylhydantoinHCID 597696—

Reaction Steps

640.6 g (5 mols) of 5,5-dimethylhydantoin, 420.9 g (5 mols+10% excess) of allyl chloride, 380.1 g (2.5 mols+10% excess) of potassium carbonate and 1,000 ml of dimethylformamide are reacted, and worked up, analogously to Example 1. 820 g (97.5% of theory) of a brownish waxy crude product are obtained and are purified by distillation. 713.7 g (84.9% of theory) of a distillate are obtained; this boils at 114° C./13.3 Pas and melts at 66.2°-68.7° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04256867
Source datasetuspto-grants-1981_03
ORD IDord-ffca050c07954e4bb08f98b21686969d
Source noteuspto-grants-1981_03