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
Mechanistic Studies of the Hydroamination of Norbornene with Electrophilic Platinum Complexes: The Role of Proton Transfer
作者:Jennifer L. McBee、Alexis T. Bell、T. Don Tilley
DOI:10.1021/ja8030104
日期:2008.12.10
studies do not favor an olefin coordination mechanism but are instead consistent with a mechanism involving sulfonamide coordination and generation of an acidic proton that is transferred to the norbornene. It is postulated that the resulting norbornyl cation is then attacked by free sulfonamide, and loss of proton from this adduct completes the hydroamination. The platinum-sulfonamide complex readily
Amidation of norbornene with organic nitriles in the presence of water catalyzed by iron compounds
作者:Ravil I. Khusnutdinov、Tatyana M. Oshnyakova
DOI:10.1016/j.tetlet.2015.09.131
日期:2015.11
The amidation of norbornene with various nitriles was performed in the presence of water under the action of FeCl3·6H2O to give N-(exo-2-norbornyl)acylamides in 76–95% yield.
Zirconium-Catalyzed Intermolecular Hydroamination of Unactivated Olefins
作者:Li-Wen Xu、Chun-Gu Xia、Lei Yang、Wei Zhou、Yue-Hua Gao、Wei Sun
DOI:10.1055/s-0028-1088151
日期:2009.4
Highly efficienthydroamination reactions of sulfonamides, carboxamides, and carbamates with unactivatedolefins catalyzed by simple and inexpensive zirconium salts under mild reaction conditions were presented for the practical preparation of various amines. These processes gave good to excellent yields of the addition products in Markovnikov addition fashion.
Inter- and Intramolecular Hydroamination of Unactivated Alkenes Catalysed by a Combination of Copper and Silver Salts: The Unveiling of a Brønstedt Acid Catalysis
The combined use of a copper halide, a silver salt and a phosphane ligand was applied for the catalysis of inter- and intramolecularhydroamination of alkenes. The reactions of unactivated olefins with nitrogen substrates were investigated. Mechanistic investigations demonstrated that the catalytic system generated a Brønsted acid which appeared to be the prominent catalytic species.