反応 #1470432

反応方程式

1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine

citric acid

→

product

Bis-(1-hydroxy-2,2,6,6-tetramethyl-4-hydroxypiperidinium) Citrate

溶媒

water

反応条件

後処理

1. 1
   その他Catalyst is removed by filtration through a pad of Celite
2. 2
   その他Removal of water

実験手順

To a glass 0.5 L reaction bottle are added 20.0 g (116 mmol) of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine, 11.12 g (58 mmol) citric acid, 200 mg 5% Pt on C and 100 mL water. Catalytic hydrogenation is carried out at 50 psi for 30 minutes at room temperature. Catalyst is removed by filtration through a pad of Celite. The aqueous salt solution has a pH of 4.39. Removal of water yields the product as a hygroscopic glassy solid.

出典