700378-36-5Relevant articles and documents
Cyclopentadienyl-based Mg complexes in the intramolecular hydroamination of aminoalkenes: Mechanistic evidence for cationic: Versus neutral magnesium derivatives
Gallegos, Carlos,Camacho, Ruth,Valiente, Mercedes,Cuenca, Tomás,Cano, Jesús
, p. 5134 - 5143 (2016/07/07)
Neutral and cationic magnesium complexes stabilized by coordination of a cyclopentadienyl ligand with two different neutral hemilabile donor groups [Mg{η5-C5H3-1,3-(CH2CH2NiPr2)(SiMe2NPh2)}X(thf)] (X = Bz (2); N(SiMe3)2 (3)) and [Mg{η5-C5H3-1,3-(CH2CH2NiPr2)(SiMe2NPh2)}][BPh4] (4) have been prepared and characterized. The 1H-13C HMBC and HSQC spectra of compounds 2 and 3 demonstrate the formation of 1,3-substituted cyclopentadienyl compounds and DOSY and 1H-NMR experiments support the coordination-decoordination in solution of a THF molecule in complex 2. No Schlenk-type ligand redistributions were observed in the chemical behaviour of these magnesium complexes. Compounds 2-4 are active catalysts in the hydroamination of aminoalkenes; stoichiometric reactions and kinetic measurements have been performed to gain an insight into their reaction mechanisms. A key contribution here is the catalytic reactivity of a cationic magnesium compound.
Intramolecular hydroamination of aminoalkenes catalyzed by a cationic zirconium complex
Wang, Xinke,Chen, Zhou,Sun, Xiu-Li,Tang, Yong,Xie, Zuowei
supporting information; experimental part, p. 4758 - 4761 (2011/10/30)
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.
