Recent topics in dual hydrogen bonding catalysis

Dual hydrogen bonding donors have received much attention in the area of organocatalysis after the discovery of chiral thiourea derivatives that act as asymmetric catalysts. This digest focuses on recent advances in this area categorized in the following three topics: 1) enhanced hydrogen bonding donor catalysis; new scaffolds with improved reactivity and selectivity are introduced and compared with established catalysts; 2) anion binding catalysis; recent advances in terms of catalysts and their applications is addressed; 3) multiple catalysis involving dual hydrogen bonding catalysts; a relatively new field of dual hydrogen bonding donor catalysis combined with other catalysis is introduced. (C) 2017 Elsevier Ltd. All rights reserved.