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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1650744Generated: November 1, 2026

Benzyl Bromide → HCID 53945212, compound

https://huagongshe.com/reaction/1650744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantPotassium HydroxideHCID 14797—
ReactantEthyl 2-oxo-4-(trifluoromethyl)-2,3-dihydro-1,3-thiazole-5-carboxylateHCID 2783041—
CatalystTetrabutylammonium BromideHCID 74236—
SolventTolueneHCID 1140—
ProductHCID 53945212HCID 53945212—

Reaction Steps

5 g of ethyl (2,3-dihydro-2-oxo-4-trifluoromethyl-thiazol-5-yl)-carboxylate (CA Vol. 92 110 998P), 80 ml of toluene, 1.16 g of potassium hydroxide, 3.7 ml of benzyl bromide and 1.61 g of tetrabutyl-ammonium bromide were heated at 70° C. for 7 hours and the mixture was allowed to return to ambient temperature, and was decanted, washed and dried to obtain 7.2 g of product which was chromatographed on silica. Elution with a hexane-isopropyl ether mixture (8-2) yielded 5.46 g of the expected product with a Rf=0.17.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04925862
Source datasetuspto-grants-1990_05
ORD IDord-86833b80b88647b3a4fb72472299e059
Source noteuspto-grants-1990_05