Copper-mediated tandem vicinal difunctionalisation of dimethyl acetylenedicarboxylate, followed in selected cases by oxidation of one of the substituents, provides a versatile and rapid route to a variety of natural and unnatural disubstituted maleic anhydrides.
                                    铜介导的
乙炔二
甲酸二甲酯的串联邻位双官能化反应,以及在某些情况下其中一个取代基的氧化反应,为获得各种天然和非天然的二取代
马来酸酐提供了多用途的快速途径。