51.One-Pot Syntheses of Chromeno[3,4-c]pyrrole-3,4-diones via Ugi-4CR and Intramolecular Michael Addition
C. Che, S. Li, X. Jiiang, J. M. Quan, S. Lin, Z. Yang*
One-pot and diastereoselective syntheses of diverse chromeno[3,4-c]pyrrole-3,4-diones from readily available starting materials were achieved via sequential Ugi-4CR and intramolecular Michael addition.