Recent Advances in Transition-Metal-Catalyzed Selective C–H Alkoxycarbonyldifluoromethylation Reactions of Aromatic Substrates
Guodong Ju
a
Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, P. R. of China
,
Guanglian Tu
a
Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, P. R. of China
,
Yingsheng Zhao∗
a
Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, P. R. of China
b
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, P. R. of China
› Author AffiliationsThis work was supported by Natural Science Foundation of China (Nos. 21772139), the Major Basic Research Project of the Natural Science Foundation of Jiangsu Higher Education Institutions (17KJA150006), the Jiangsu Province Natural Science Found for Distinguished Young Scholars (BK20180041), Project of Scientific and Technologic Infrastructure of Suzhou (SZS201708), and the PAPD Project. The project was also supported by the Open Research Fund of the School of Chemistry and Chemical Engineering, Henan Normal University.
Fluorine is well-known as a very special element. Approximately 30% of agrochemicals and 20% of all drugs contain fluorine; most of those compounds have unique functions in biochemistry, pharmacy, and bioscience and those containing alkoxycarbonyldifluoromethyl functional groups often have irreplaceable roles. Therefore, the selective introduction of alkoxycarbonyldifluoromethylated functional groups into various aromatic substrates has significant practical application. This review describes recent advances in selective alkoxycarbonyldifluoromethylation of aromatic substrates by using different catalytic strategies (cyclometalated ruthenium complex, transient regulating and visible-light-induced strategies).
1 Introduction
2 para-C–H Alkoxycarbonyldifluoromethylation of Aromatic Derivatives
2.1 Ruthenium Catalysis
2.2 Palladium Catalysis
2.3 Visible-Light Catalysis
2.4 Iron Catalysis
3 meta-C–H Alkoxycarbonyldifluoromethylation of Aromatic Derivatives
3.1 Ruthenium Catalysis
3.2 Palladium Catalysis
4 The Influence of Transition Metals and Directing Groups on Site Selectivity of Alkoxycarbonyldifluoromethylation
4.1 The Influence of Directing Groups on the Site Selectivity of Alkoxycarbonyldifluoromethylation
4.2 The Influence of Transition Metals on the Site Selectivity of Alkoxycarbonyldifluoromethylation
