Analyzing Site Selectivity in Rh<sub>2</sub>(esp)<sub>2</sub>-Catalyzed Intermolecular C–H Amination Reactions
作者:Elizabeth N. Bess、Ryan J. DeLuca、Daniel J. Tindall、Martins S. Oderinde、Jennifer L. Roizen、J. Du Bois、Matthew S. Sigman
DOI:10.1021/ja5015508
日期:2014.4.16
Predicting site selectivity in C–H bond oxidation reactions involving heteroatom transfer is challenged by the small energetic differences between disparate bond types and the subtle interplay of steric and electronic effects that influence reactivity. Herein, the factorsgoverningselective Rh2(esp)2-catalyzed C–H amination of isoamylbenzene derivatives are investigated, where modification to both
<scp>Iron‐Catalyzed</scp>
Primary C—H Amination of Sulfamate Esters and Its Application in Synthesis of Azetidines
<sup>†</sup>
作者:Yan Zhang、Dayou Zhong、Muhammad Usman、Peng Xue、Wen‐Bo Liu
DOI:10.1002/cjoc.202000299
日期:2020.12
The direct amination of unactivated primary C—H bonds is extremely challenging due to their inert nature. Herein, we report an intramolecular primary C—Hamination of sulfamate esters using an iron catalyst derived from iron(II) triflate and bipyridine. An array of oxathiazinanes were synthesized in moderate to good yields, which were further converted into biologically important azetidines by a one‐pot