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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1241987Generated: October 30, 2026

Benzyl Isothiocyanate → 3-Benzyl-1-methyl-2-thioxoimidazolidin-4-one

https://huagongshe.com/reaction/1241987

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl IsothiocyanateHCID 2346—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantGlycine, N-methyl-, methyl ester, hydrochloride (1:1)HCID 83544—
SolventEthanolHCID 702—
Product3-Benzyl-1-methyl-2-thioxoimidazolidin-4-oneHCID 2193762999.9%

Reaction Steps

To a solution of sarcosine methyl ester hydrochloride (0.56 g, 4.0 mmol) and DBU (0.60 mL, 4.0 mmol) in anhydrous ethanol added benzyl isothiocyanate (0.53 mL, 4.0 mmol). The resulting solution was heated at reflux 16 h, cooled, concentrated and chromatographed (silica gel, DCM) to give the title compound (0.88 g, quant.). 1H-NMR (CDCl3): δ 7.49–7.53 (2H, m), 7.28–7.35 (3H, m), 5.02 (2H, s), 4.03 (2H, s), 3.34 (3H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07115640B2
Source datasetuspto-grants-2006_10
ORD IDord-31168669904348c2ad1445dc9aed39a1
Source noteuspto-grants-2006_10