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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 486113Generated: October 28, 2026

Water → HCID 57056771, compound

https://huagongshe.com/reaction/486113

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)-4-hydroxyphenyl]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-[3,5-bis(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 numberUS05290800
Source datasetuspto-grants-1994_03
ORD IDord-637d4946352c4bfd9ff1e5793575c061
Source noteuspto-grants-1994_03