Synthesis of Pyrimidopyrimidinediones in a Deep Eutectic Reaction Mixture

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CCDC 863298 contains the supplementary crystallographic data for compound1a. These data can be obtained free of charge from The Cambridge Crystallographic Data Centreviawww.ccdc.cam.ac.uk/data_request/cif.

Since one equivalent of DMU is consumed during the reaction an additional one equivalent of DMU is added in the next cycle.

CCDC 863297 contains the supplementary crystallographic data for compound7a. These data can be obtained free of charge from The Cambridge Crystallographic Data Centreviawww.ccdc.cam.ac.uk/data_request/cif.