Volume 41, Issue 6 pp. 685-694
Cornerstones in Chemistry

Imidodiphosphorimidates (IDPis): Catalyst Motifs with Unprecedented Reactivity and Selectivity

Jun Kee Cheng

Jun Kee Cheng

Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

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Shao-Hua Xiang

Shao-Hua Xiang

Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

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Bin Tan

Corresponding Author

Bin Tan

Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

E-mail: [email protected]Search for more papers by this author
First published: 12 November 2022
Citations: 5

Abstract

The conceptually designed imidodiphosphorimidates (IDPis) have emerged as one of the most potent classes of chiral acid catalysts. They are characterized by enzyme-like, highly confined active site and high acidity, which underlie their wide-reaching applications as Brønsted acid catalysts and as precatalysts for silylium Lewis acids. Many carbon-carbon and carbon-heteroatom bond formation reactions that were deemed intractable could now be attained with spectacular reactivity and selectivity. Substrates that are small, unbiased and/or possess insufficient reactivity such as simple alkenes could now be engaged. The high structural confinement is particularly invaluable to control stereo- and chemoselectivity. The well-defined steric environment offers unique opportunity to control high-energy but structurally unbiased cation intermediates such as the norbonyl cations. Beyond practical appeals such as good scalability as well as ease and modularity of preparation, the extremely low pre-catalyst loadings required to achieve high turnover and stereoselectivity have also come to define a new frontier in organocatalysis. image

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