Baeyer-Villiger monooxygenase-catalyzed desymmetrizations of cyclobutanones. Application to the synthesis of valuable spirolactones

Autor: Vicente Gotor, Javier Mendiola, Ivan Collado, Oscar de Frutos, Susana García-Cerrada, Vicente Gotor-Fernández, Iván Lavandera, María Rodríguez-Mata
Rok vydání: 2016
Předmět:
Zdroj: Scopus
RUO. Repositorio Institucional de la Universidad de Oviedo
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Popis: A series of γ-butyrolactone derivatives, including some spiranic ones, was obtained through desymmetrization of the corresponding prochiral 3-substituted cyclobutanones via Baeyer–Villiger monooxygenase (BVMO)-catalyzed oxidation. After reaction optimization using several commercial enzymes, both antipodes of various lactones were synthesized in most cases with >90% conversion and >80% enantiomeric excess under mild reaction conditions. In some cases alcohol formation was also observed (up to 40% conversion) as an undesired side reaction due to the presence of alcohol dehydrogenases in these preparations. Selected transformations were achieved on a 100 mg scale showing the possibilities of these oxidative biocatalysts as a new source of highly interesting compounds.
Databáze: OpenAIRE