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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2278956Generated: October 28, 2026

Water → HCID 90427081, compound

https://huagongshe.com/reaction/2278956

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCyclohexyl isocyanateHCID 18502—
Reactant2-MethylallylamineHCID 76141—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 90427081HCID 9042708187%

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of 2-methylallylamine (0.156 g, 2.197 mmol) in dioxane (5 mL) was treated with DBU (0.030 mL, 0.200 mmol) and cyclohexyl isocyanate (0.25 g, 1.997 mmol) and heated at 60° C. overnight. The mixture was cooled to RT, treated with water, extracted with EtOAc (2×) and the combined organics were washed with brine, dried over Na2SO4 and concentrated to dryness to afford 1-cyclohexyl-3-(2-methylallyl)urea (340 mg, 87%). 1H NMR (400 MHz, DMSO-d6): δ 5.80 (m, 1 H), 5.72 (d, J=8.0 Hz, 1 H), 4.72 (m, 1 H), 4.68 (m, 1 H), 3.50 (d, J=5.3 Hz, 2 H), 3.30 (m, 1 H), 1.70 (m, 2 H), 1.61 (s, 3 H), 1.60 (m, 1 H), 1.48 (m, 1 H), 1.27 (m, 2 H), 1.13 (m, 4 H); MS (ESI) m/z: 197.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133183B2
Source datasetuspto-grants-2015_09
ORD IDord-cb013e7cfcb544909d6c6d1f9e0c1543
Source noteuspto-grants-2015_09