Copper-Catalyzed Intermolecular Amidation and Imidation of Unactivated Alkanes
作者:Ba L. Tran、Bijie Li、Matthias Driess、John F. Hartwig
DOI:10.1021/ja411912p
日期:2014.2.12
evidenced by the catalytic reaction of cyclohexane with benzamide in the presence of CBr4, which formed exclusively bromocyclohexane. Furthermore, stoichiometric reactions of [(phen)Cu(phth)2] with tBuOOtBu and (Ph(Me)2CO)2 at 100 °C without cyclohexane afforded N-methylphthalimide (Me-phth) from β-Me scission of the alkoxyradicals to form a methylradical. Separate reactions of cyclohexane and d12-cyclohexane
作者:Abolghasem (Gus) Bakhoda、Quan Jiang、Yosra M. Badiei、Jeffery A. Bertke、Thomas R. Cundari、Timothy H. Warren
DOI:10.1002/anie.201810556
日期:2019.3.11
functionalizing stronger primary and secondary C−H bonds over tertiary and benzylic C−H sites. Herein, we report a Cu catalyst that exhibits a high degree of primary and secondary over tertiary C−H bond selectivity in the amidation of linear and cyclic hydrocarbons with aroyl azides ArC(O)N3. Mechanistic and DFT studies indicate that C−H amidation involves H‐atom abstraction from R‐H substrates by nitrene intermediates