Pyridine → 2-(2-Aminoethoxy)-2-oxo-1,3,2-dioxaphospholane

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Reaction Steps

Ethanolamine p-toluenesulphonate (10.0 g, 39.8 mmol was dissolved in dry acetonitrile (500 ml) at 60° C. The solution was cooled to 30° C. when pyridine (3.15 g, 39.8 mmol) was added. A solution of 2-chloro-2-oxo-1,3,2-dioxaphospholane (5.68 g, 39.8 mmol) in dry acetonitrile (5 ml) was then added over 10 minutes. The mixture was stirred at ambient temperature for 4 hours and then the acetonitrile evaporated in vacuo to give 2-(2-aminoethoxy)-2-oxo-1,3,2-dioxaphospholane as a viscous oil.

Provenance & Evidence