Реакция #1470432

Уравнение реакции

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

citric acid

→

product

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

Растворители

water

Условия реакции

Обработка

1. 1
   ДругоеCatalyst is removed by filtration through a pad of Celite
2. 2
   ДругоеRemoval of water

Методика

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.

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