The study of the complexation of anions, from its beginnings in the late 1960s and 1970s,(1-
3) has moved on from being an area solely of academic interest to a fundamental pillar of …

Charged intermediates and reagents are ubiquitous in organic transformations. The
interaction of these ionic species with chiral neutral, anionic, or cationic small molecules has …

Electrostatic attraction between two groups of opposite charge, typically known as ion-
pairing, offers unique opportunities for the design of systems to enable selectivity control in …

During the past four years, the research of new synthetic methodologies for the rapid
construction of enantiomerically pure substituted indole has had a fruitful and important …

N-Acyliminium ions are powerful reactive species for the formation of carbon–carbon and
carbon–heteroatom bonds. Strategies relying on intramolecular reactions of N-acyliminium …

Enantiomerically enriched indole-containing heterocycles play a vital role in bioscience,
medicine, and chemistry. As one of the most attractive subtypes of indole alkaloids, highly …

Chiral Brønsted acids have found widespread applications as organocatalysts. Weakly
acidic species such as diols and (thio) ureas, typically classified as hydrogen bonding …

Aldehyde-and ketone-functionalized proteins are appealing substrates for the development
of chemically modified biotherapeutics and protein-based materials. Their reactive carbonyl …

Abstract Geladene Intermediate und Reagentien sind in organischen Transformationen
ubiquitär. Die Wechselwirkungen dieser ionischen Spezies mit chiralen neutralen …

The Pictet-Spengler reaction (PS) is one of the most direct, efficient, and variable synthetic
method for the construction of privileged pharmacophores such as tetrahydro-isoquinolines …