Zirconium catalysed enantioselective hydroamination/cyclisationElectronic Supplementary Information (ESI) available: experimental details and characterising data for complexes and substrates, catalytic protocol, determination of ee, crystal data for [ZrL2Cl2]. See http://www.rsc.org/suppdata/cc/b4/b401493f/
Cationic Group-IV pincer-type complexes for polymerization and hydroamination catalysis
作者:Lapo Luconi、Jerzy Klosin、Austin J. Smith、Stéphane Germain、Emmanuelle Schulz、Jérôme Hannedouche、Giuliano Giambastiani
DOI:10.1039/c3dt51620b
日期:——
chelating rigid structure of the N,C,N} ligand framework. Such a combination translates into systems having a unique balance between stability and reactivity. These ZrIV and HfIV dimethyl complexes were converted in situ into cationic species [MIVN−,C−,N}Me][B(C6F5)4] which are active catalysts for the room temperature (r.t.) intramolecularhydroamination/cyclization of primary and secondary aminoalkenes
Zirconium catalysed enantioselective hydroamination/cyclisationElectronic Supplementary Information (ESI) available: experimental details and characterising data for complexes and substrates, catalytic protocol, determination of ee, crystal data for [ZrL2Cl2]. See http://www.rsc.org/suppdata/cc/b4/b401493f/
作者:Paul D. Knight、Ian Munslow、Paul N. O'Shaughnessy、Peter Scott
DOI:10.1039/b401493f
日期:——
A chiral zirconium alkyl cation catalyses the cyclisation of certain aminoalkenes with enantioselectivity up to 82%, the highest thus far observed for such a process.
ZrIV and HfIV benzyl (neutral or cationic) and amido catalysts stabilized by pyridylamido ligands are found to be good candidates for the intramolecular hydroamination/cyclization of primary and secondary aminoalkenes. In particular, cationic monobenzyl derivatives have shown remarkable catalytic activity for the production of five and six‐membered N‐containing heterocycles from secondary amino alkenes