1326544-90-4Relevant academic research and scientific papers
Intramolecular hydroamination of aminoalkenes catalyzed by a cationic zirconium complex
Wang, Xinke,Chen, Zhou,Sun, Xiu-Li,Tang, Yong,Xie, Zuowei
, p. 4758 - 4761 (2011)
A new cationic [N-O-S]zirconium complex (cat.) was developed to be an excellent catalyst for the intramolecular hydroamination of aminoalkenes with a large substrate scope from terminal alkenes to internal alkenes, and primary amines to secondary amines. The catalyst system can also tolerate various functional groups and perform sequential hydroamination of primary aminodienes.
Intramolecular hydroamination reactions catalyzed by zirconium complexes bearing bridged bis(phenolato) ligands
Zhang, Yu,Sun, Qiu,Wang, Yaorong,Yuan, Dan,Yao, Yingming,Shen, Qi
, p. 10541 - 10548 (2016/02/09)
Zirconium complexes stabilized by piperazidine- and imidazolidine-bridged bis(phenolato) ligands have been synthesized and characterized. Their activities in catalyzing intramolecular hydroamination reactions have been tested and compared, which reveals the significant role that the ancillary ligands play in influencing catalytic activities. Cationic species derived from zirconium dibenzyl complexes showed good activities in catalyzing intramolecular hydroamination reactions of both primary and secondary amines, and afforded the respective N-heterocycles in 85% to 99% yields. Moreover, this catalytic system also catalyzed sequential cyclization of primary aminodienes, and generated bicyclic tertiary amines in 94-99% yields.
