Recoverable, Soluble Polymer-Supported Organic Catalysts
315
Scheme 7.
increasing after each cycle, probably due to an imidazolidinone ring
opening process. The triflate salt of the non-supported imidazolidinone
was kept for 120 h at 24 °C in a 95/5 CD 3 CN/D 2 O mixture both in the