Lewis acidic cationic aluminium complexes, stabilized by β–diketiminate (BDI) ligands and free of Lewis bases, have been prepared as their B(C6F5)4− salts and were investigated for catalytic activity in imine hydrogenation. The backbone (R1) and N (R2) substituents on the R1,R2BDI ligand (R1,R2BDI=HC[C(R1)N(R2)]2) influence sterics and Lewis acidity. Ligand bulk increases along the row Me,DIPPBDI
[EN] METHODS FOR PREPARING ISOQUINOLINES<br/>[FR] PROCÉDÉS POUR PRÉPARER DES ISOQUINOLÉINES
申请人:HARVARD COLLEGE
公开号:WO2013003315A3
公开(公告)日:2013-03-07
A Versatile Synthesis of Substituted Isoquinolines
作者:Chong Si、Andrew G. Myers
DOI:10.1002/anie.201104769
日期:2011.10.24
o‐tolualdehyde tert‐butylimines were shown to condense with nitriles to form eneamido anion intermediates that were trapped in situ with various electrophiles, thus affording a diverse array of highly substitutedisoquinolines, many of which are difficult to access by known methods. Further substitutional diversification was achieved by modification of the work‐up conditions and by subsequent transformations.