corresponding N-substituted dimethyl 3-oxoisoindolin-1-ylphosphonates in good yield which, by means of a dephosphonylation reaction with lithiumaluminum hydride, give the target N-substituted isoindolin-1-ones in moderate to good yield. amino phosphonates - isoindolinones - C-P cleavage - microwave irradiation - one-pot reaction
An efficient and mild three-component synthesis of isoindolin-1-one-3-phosphonates is described. The reaction between a 2-formylbenzoicacid, a primary amine, and a trialkyl phosphite proceeded at ambient temperature under catalyst- and solvent-freeconditions to afford the desired compounds in excellent yields.