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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2396819Generated: October 30, 2026

Water → HCID 57056771, compound

https://huagongshe.com/reaction/2396819

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 54482101HCID 54482101—
SolventEthanolHCID 702—
ProductHCID 57056771HCID 5705677192.7%

Reaction Steps

A mixture of 5-[1-[3,5-bis(1,1-dimethylethyl)-4hydroxyphenyl]ethylidene]-2-thioxo-4-thiazolidinone (1.6 g, 4 mmoles), iodomethane (0.45 mL, 7 mmoles), and diisopropylethylamine (1.1 mL, 6 mmoles) in 20 mL of ethanol is stirred under N2 at room temperature for 16 hours, then stirred into 200 mL of water. The precipitate is filtered off, rinsed with water, and dried to afford the product (1.4 g) of 5-[1-[3,5bis(1,1-dimethylethyl)-4-hydroxyphenyl]-ethylidene]-2-(methylthio)-4(5H)-thiazolone, mp 206°-209° C. A sample recrystallized from acetonitrile was analytically pure, mp 224°-226° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05494927
Source datasetuspto-grants-1996_02
ORD IDord-914affbb148f404580285c6e9f346ee3
Source noteuspto-grants-1996_02