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).
Thomson, Ronald H.; Worthington, Roger D., Journal of the Chemical Society. Perkin transactions I, 1980, p. 282 - 288
作者:Thomson, Ronald H.、Worthington, Roger D.
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日期:——
THOMSON R. H.; WORTHINGTON R. D., J. CHEM. SOC. PERKIN TRANS., PART 1, 1980, NO 1, 282-288
作者:THOMSON R. H.、 WORTHINGTON R. D.
DOI:——
日期:——
SCHUBERT-ZSILAVECZ, MANFRED;LIKUSSAR, WERNER;GUSTERHUBER, DAGMAR;MICHELIT+, MONATSH. CHEM., 122,(1991) N, C. 383-387