443299-10-3Relevant academic research and scientific papers
Component exchange as a synthetically advantageous strategy for the preparation of bicyclic cage compounds
Alajarin, Mateo,Berna, Jose,Lopez-Leonardo, Carmen,Steed, Jonathan W.
supporting information; body text, p. 2337 - 2339 (2009/02/03)
Macrobicyclic triphosphazides are able to reversibly exchange one of their tripodal components by means of a dynamic disassembly-reassembly process; surprisingly this strategy provides better yields of cage compounds than a direct tripod-tripod coupling.
Modulating the propeller-like shape of a tripodal C(CH2PPh2)3 fragment by the size of the substituent at the pivotal carbon atom in macrobicyclic tri-λ5-phosphazenes
Alajarín, Mateo,López-Leonardo, Carmen,Berná, José
, p. 4450 - 4458 (2008/02/03)
The chiral macrobicyclic tri-λ5-phosphazenes formed by tripod-tripod coupling of tris(3-azidobenzyl)amines and 1,1,1-tris[(diphenylphosphino)methyl]methanes present helical topologies as a result of combining two propeller-shaped tripodal fragm
New macrobicyclic triphosphazides and triphosphazenes formed by self-assembly of tripodal triazides with triphosphanes
Alajarín, Mateo,López-Leonardo, Carmen,Berná, José
, p. 6190 - 6202 (2007/10/03)
The self-assembly of tris(3-azidobenzyl)amines with 1,1,1-tris[(diphenylphosphino)methyl]ethane via tripod-tripod coupling proceeds successfully to give chiral macrobicyclic triphosphazides. The heating of these macrobicyclic cages induces a remarkable stepwise triple extrusion of molecular nitrogen to afford tri-λ5-phosphazenes, which preserved the chiral, propeller-like topology of their precursors. The replacement of one benzylic arm by an ortho-phenethylic or propylenic one still allows the success of the self-assembly. However, the quaternization of the pivotal nitrogen atom of the triamine in the form of N-oxide prevented its coupling with the triphosphane.
