Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 5405-41-4, Name is Ethyl 3-hydroxybutanoate, SMILES is C(C(OCC)=O)C(C)O, in an article , author is Niphade, Navnath C., once mentioned of 5405-41-4, Category: quinuclidines.
Efficient and single pot process for the preparation of enantiomerically pure solifenacin succinate, an antimuscarinic agent
The development of an efficient and economic one-pot process, in which the configuration of the chiral centers of the starting materials is retained, for the preparation of highly pure solifenacin succinate, an antimuscarinic agent, is presented in this communication. The earlier reported processes suffer from the drawbacks of racemization and low yields due to the use of strong base, higher temperatures, and longer reaction times. The present work circumvents these issues by activating (3R)-quinuclidin-3-ol into a mixed active carbonate derivative by treating it with bis(4-nitrophenyl)carbonate. The subsequent reaction of the active carbonate with an enantiomerically pure amine without using any base at ambient temperature provided enantiomerically pure solifenacin with an overall yield of 90%.
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Reference:
Quinuclidine – Wikipedia,
,Quinuclidine | C7H13N | ChemSpider