Prodendronic polyamines from stable or labile methacrylates obtained by selective Michael addition onto asymmetric diacrylic compounds
作者:Juan Alfonso Redondo、Rodrigo Navarro、Enrique Martínez-Campos、Mónica Pérez-Perrino、Rodrigo París、José Luis López-Lacomba、Carlos Elvira、Helmut Reinecke、Alberto Gallardo
DOI:10.1002/pola.27240
日期:2014.8.15
N′‐tetraethyldiethylenetriamine (TEDETA) as the secondaryamine leads to TEDETA moieties supported on polymeric chains. The new aminopolymers are sensitive to pH and to temperature exhibiting a lower critical solution temperature of between 50 and 90 °C. A further interesting feature of the new approach is that the stability toward hydrolysis of the side β‐amino acyl compounds was found to be dependent on whether
Understanding the regioselectivity of Michael addition reactions to asymmetric divinylic compounds
作者:Rodrigo Navarro、Cristina Monterde、Serena Molina、Mónica Pérez-Perrino、Felipe Reviriego、Anselmo del Prado、Alberto Gallardo、Helmut Reinecke
DOI:10.1039/c7ra11005g
日期:——
In the present paper, we describe the synthesis of novel monomers prepared by regioselective Michael addition to asymmetric divinylic compounds. This chemoselectivity was experimentally studied employing different reaction conditions and theoretically calculated using chemical global and local descriptors. The global reactivity data show that incoming nucleophilic secondary amines preferentially attack