作者:Manfred Schubert-Zsilavecz、Werner Likussar、Dagmar Gusterhuber、Astrid Michelitsch
DOI:10.1007/bf00809659
日期:1991.5
A new approach to the synthesis of 2H-isoindole-4,7-diones is described. Heating alpha-amino acids with carbonyl compounds generates azomethine ylides through the elimination of water and carbon dioxide. The ylides were captured by quinones forming 2H-isoindole-4,7-diones, 2,3,3a,7a-tetrahydro-1H-isoindole-4,7-diones and 2,3-dihydro-1H-pyrrolo[2,1-a]isoindole-6,9-diones. The structures were established on the basis of spectroscopy (NMR, mass).