1262962-75-3Relevant academic research and scientific papers
Intramolecular hydroamination catalysis using trans-N,N′- dibenzylcyclam zirconium complexes
Antunes, M. Augusta,Munhá, Rui F.,Alves, Luis G.,Schafer, Laurel L.,Martins, Ana M.
, p. 2 - 6 (2011/02/16)
The syntheses of (Bn2Cyclam)Zr(NMe2)2 (1), (Bn2Cyclam)Zr(NH2,6-MePh)Cl (2) and (Bn 2Cyclam)Zr(N2,6-MePh) (3) are described. The reactivity of 1, 3, (Bn2Cyclam)Zr(CH2Ph)2 (4) and ((C 6H4CH2)2Cyclam)Zr (5) as hydroamination catalysts of aminoalkenes is reported. High conversions of the primary gem-disubstituted aminoalkenes in 5- or 6-member ring N-heterocycles were observed. Reactions of 1, 4 and 5 with CH2CHCH 2CPh2CH2NH2 gave (Bn 2Cyclam)Zr(NHR)2 (6) (R = CH2CPh 2CH2CHCH2) that on heating converts sequentially into the mono-ortho-metallated species ((C6H 4CH2)BnCyclam)Zr(NHR) (7) and the bis-ortho-metallated ((C6H4CH2)2Cyclam)Zr (5), simultaneously with the hydroamination product.
