Otarola et al. Catalysts. 2020;22(21):1178. Gold-Catalyzed Synthetic Strategies towards Four-Carbon Ring Systems.

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Gold-Catalyzed Synthetic Strategies towards Four-Carbon Ring Systems.

Departamento de Quı́mica Orgánica y Quı́mica Inorgánica, Instituto de Investigación Quı́mica "Andrés M. del Rı́o" (IQAR). Universidad de Alcalá (IRYCIS). Campus Cientı́fico-Tecnológico, Facultad de Farmacia, Autovía A-II, Km 33.1, 28805 Alcalá de Henares, Madrid, Spain.


Four carbon ring systems are frequently present in natural products with remarkable biological activities such as terpenoids, alkaloids, and steroids. The development of new strategies for the assembly of these structures in a rapid and efficient manner has attracted the interest of synthetic chemists for a long time. The current research is focused mainly on the development of synthetic methods that can be performed under mild reaction conditions with a high tolerance to functional groups. In recent years, gold complexes have turned into excellent candidates for this aim, owing to their high reactivity, and are thus capable of promoting a wide range of transformations under mild conditions. Their remarkable efficiency has been thoroughly demonstrated in the synthesis of complex organic molecules from simple starting materials. This review summarizes the main synthetic strategies described for gold-catalyzed four-carbon ring formation, as well as their application in the synthesis of natural products.

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