Enantioselective Desymmetrization of cis-3,5-O-Arylidenecyclohexanones Catalyzed by Cinchona-Derived Quaternary Ammonium Salts

Autor: Mauro F. A. Adamo, Malachi Gillick Healy, Andrea Mereu, Mauro Cortigiani
Rok vydání: 2019
Předmět:
Zdroj: The Journal of Organic Chemistry. 84:4112-4119
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.9b00108
Popis: An enantioselective protocol for the desymmetrization of cis-3,5- O-arylidenecyclohexanones has been developed that proceeded under the catalysis of readily available and inexpensive Cinchona-derived quaternary ammonium salts. The synthetic relevance of the methodology was exemplified by the synthesis of a key intermediate that could be used in the preparation of the active pharmaceutical ingredient, paricalcitol (Zemplar).
Databáze: OpenAIRE