Volume 60, Issue 52 pp. 27288-27292
Communication

Enantioselective Palladium-Catalyzed Hydrophosphinylation of Allenes with Phosphine Oxides: Access to Chiral Allylic Phosphine Oxides

Zhiping Yang

Zhiping Yang

Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

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Prof. Jun (Joelle) Wang

Corresponding Author

Prof. Jun (Joelle) Wang

Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China

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First published: 28 September 2021
Citations: 84

Graphical Abstract

A highly efficient, versatile and atom-economic protocol to chiral allylic phosphine oxides is demonstrated via palladium-catalyzed asymmetric hydrophosphinylation of allenes with phosphine oxides. A family of chiral allylic phosphine oxides with a diverse range of functional groups were obtained in high yield (up to 99 %) and enantioselectivities (up to 99 % ee).

Abstract

A Pd-catalyzed hydrophosphinylation of alkyl and aryl-oxyallenes with phosphine oxides has been developed for the efficient and rapid construction of a family of chiral allylic phosphine oxides with a diverse range of functional groups. This methodology was further applied in the facile construction of chiral 2H-chromene and later stage functionalization of cholesterol.

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