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ChemicalBook CAS DataBase List 5-Azoniaspiro[4.4]nonane chloride
98997-63-8

5-Azoniaspiro[4.4]nonane chloride synthesis

3synthesis methods
-

Yield:98997-63-8 88%

Reaction Conditions:

with potassium hydroxide in water at 20 - 100;

Steps:

Synthesis of 5-azoniaspiro|"4.4"|nonane chloride:

0.02 mol of KOH in 15 mL water were kept under stirring at 100 °C for 10 min, then 0.02 mol of pyrrolidine were slowly added to the mixture at the same temperature and, after 5 min, 0.02 mol of 1,4-dichlorobutane were slowly added. The solution was kept at 100 °C for 18 h, then 1 night at room temperature. The solvent was eliminated under reduced pressure, obtaining a solid, which was dissolved in CHCI3 and filtrated. The chloroform phase was concentrated under vacuum, obtaining 2.84 g of pure 5-azoniaspiro[4.4]nonane chloride (88%).

References:

WO2017/137343,2017,A1 Location in patent:Page/Page column 8