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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860123Generated: October 31, 2026

Methanol → HCID 12044455, compound

https://huagongshe.com/reaction/1860123

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantMethylureaHCID 11719—
ReactantMethanol, magnesium salt (2:1)HCID 164537—
ReactantHCID 53726727HCID 53726727—
ProductHCID 12044455HCID 1204445562.4%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 3-cyclopentyl-2-phenyl-propionic acid ethyl ester (1.70 g, 7.06 mmol) and methyl urea (1.04 mg, 14.13 mmol) in a solution of magnesium methoxide in methanol (7.4 wt %, 130.3 mL, 21.18 mmol) was refluxed at 100° C. for 24 h. The reaction mixture was then concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 230-400 mesh, 50/50 hexanes/ethyl acetate) afforded 1-(3-cyclopentyl-2-phenyl-propionyl)-3-methyl-urea (1.21 mg, 62.4%) as a white solid: mp 145-147° C.; EI-HRMS m/e calcd for C16H22N2O2 (M+) 274.1681, found 274.1682.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06528543B1
Source datasetuspto-grants-2003_03
ORD IDord-ea76db2d934d48f385f8817fc8f2815a
Source noteuspto-grants-2003_03