Volume 64, Issue 24 e202501680
Communication

Cobalt-Catalyzed Enantioselective Hydrotrifluoromethoxylation of Aromatic Alkenes

Yafeng Si

Yafeng Si

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Yuntao Liu

Yuntao Liu

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Fan Zhou

Fan Zhou

College of Chemistry and Environmental Science, Kashi University, Kashgar, 844008 China

Search for more papers by this author
Lei Fang

Lei Fang

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Kang Wu

Kang Wu

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Yu-Xin Luan

Corresponding Author

Yu-Xin Luan

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
Li Chen

Li Chen

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

Search for more papers by this author
Pingping Tang

Corresponding Author

Pingping Tang

State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071 China

E-mail: [email protected]; [email protected]

Search for more papers by this author
First published: 23 March 2025
Citations: 1

Graphical Abstract

The synthesis of optically pure benzyl trifluoromethoxy (OCF3) compounds remains a challenging task. Here, we present the first enantioselective intermolecular hydrotrifluoromethoxylation reaction between aromatic alkenes and TFMS, catalyzed by chiral salen-Co complexes. This approach efficiently yields a variety of chiral benzylic trifluoromethoxy compounds with 75%–99% ee.

Abstract

The construction of optically pure benzyl trifluoromethoxy (OCF3) compounds continues to present challenges due to limited enantioselectivity-control or the necessity for OCF3-containing substrates in the only two previous reports. Herein, we have developed a salen-Co-catalyzed enantioselective hydrotrifluoromethoxylation reaction involving aromatic alkenes and trifluoromethyl arylsulfonate (TFMS). This method effectively produces a range of chiral benzyl trifluoromethoxy compounds with enantiomeric excesses ranging from 75% to 99%.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.