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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641900Generated: October 26, 2026

Morpholine → 4-Phenylmorpholine

https://huagongshe.com/reaction/641900

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMorpholineHCID 8083—
ReactantIodobenzeneHCID 11575—
ReactantL-ProlineHCID 145742—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethyl SulfoxideHCID 679—
Product4-PhenylmorpholineHCID 6233944.4%

Reaction Conditions

Temperature90 °C

Reaction Steps

1-iodobenzene (28.12 g, 137.84 mmol) was added to morpholine (12.0 g, 137.93 mmol). L-Proline (3.12 g, 27.13 mmol) was then added, followed by the addition of CuI (2.6 g, 13.68 mmol) and DMSO (120 mL). The resulting solution was stirred at 90° C. for 4 hours, and then the reaction mixture was then quenched by the addition of 300 mL of iced water. The resulting solution was extracted using dichloromethane (2×200 mL), and the organic layers combined, dried (Na2SO4) and concentrated. The residue was purified by column chromatography using a petroleum ether solvent system. The collected fractions were combined and concentrated to give 10 g (42%) of 4-phenylmorpholine as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696229B2
Source datasetuspto-grants-2010_04
ORD IDord-4164fd1b61e74a6d9f80aaaaffc40ee9
Source noteuspto-grants-2010_04