Abstract
AbstractA novel catalytic multicomponent reaction for the synthesis of morpholine derivatives has been reported. The reactions involve terminal alkynes, carbodiimides, and oxiranes using [Cu (CH3CN)4]PF6, tBuOLi, and TBPAc in anhydrous NMP. Aryl and heteroaromatic terminal alkynes were tolerated. Carbodiimides could be symmetrical and unsymmetrical substrates with aryl or alkyl substituents. The reaction exhibited a good regioselectivity when unsymmetrical carbodiimides were employed.
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