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This work describes novel, effective hydrogen-bond (HB) donor catalysts based on a known bifunctional tertiary amine-thiourea, a privileged structure, which has been proven to be one of the most widely used organocatalysts. These HB donor catalysts derived from quinazoline and benzothiadiazine were initially synthesized as novel HB donors with their HB-donating abilities being measured by analytical methods. They were found to be effective for a variety of asymmetric transformations including Michael reactions of a, b- unsaturated imides and hydrazination reactions of 1,3-dicarbonyl...

Describing novel, effective hydrogen-bond (HB) donor catalysts based on the privileged structure of bi-functional tertiary amine-thiourea, this work is a key addition to the literature. Its accessible style will ensure that a range of research chemists benefit.