title: Rhodium-Catalyzed Selective Mono- and Diamination of Arenes with Single Directing Site "On Water".
abstract: A Rh(III)-catalyzed selective C-H amination of 2-phenylpyridine derivatives is reported. With pyridine as a directing group, the reaction has high mono- or diamination selectivity, and a wide range of effective substrates, including electron-deficient and -rich aryl azides. Water helps to promote C-H activation, and the concept of a water promoted rollover mechanism is postulated for the diamination step. The reactions were conducted using a Schlenk flask and proceeded smoothly "on water" under atmospheric conditions with nitrogen gas as the only byproduct.
authors.affiliation: Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, 210093, China.
authors.forename: Md Ashif
authors.initials: MA
authors.lastname: Ali
authors.affiliation: Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, 210093, China.
authors.forename: Xiayin
authors.initials: X
authors.lastname: Yao
authors.affiliation: Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, 210093, China.|Department of Chemistry and Biochemistry, Texas Tech University , Lubbock, Texas 79409-1061, United States.
authors.forename: Guigen
authors.initials: G
authors.lastname: Li
authors.affiliation: Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, 210093, China.
authors.forename: Hongjian
authors.initials: H
authors.lastname: Lu