In general, DA reactions can be classified into two types of suprafacial [π4s+ π2s]
cycloadditions:(i) the normal and (ii) inverse-electron-demand DA reactions (Scheme 1) …

In the field of catalytic, asymmetric synthesis, there is a growing emphasis on multifunctional
systems, in which multiple parts of a catalyst or multiple catalysts work together to promote a …

Tetramisole promotes the catalytic asymmetric intramolecular Michael addition−
lactonization of a variety of enone acids, giving carbo-and heterocyclic products with high …

Since its discovery in 1928 by Diels and Alder, 1 the Diels–Alder reaction has become one
of the cornerstone reactions in organic chemistry for the construction of six-membered rings …

Abstract C (1)‐Ammonium enolates are powerful, catalytically generated synthetic
intermediates applied in the enantioselective α‐functionalisation of carboxylic acid …

The report by Staudinger in 1907 of the reactions of diphenylketene (1) with
benzylideneaniline (2), benzaldehyde, and cyclopentadiene forming [2þ2] adducts 3–5 …

For over a century, ketenes have intrigued organic chemists with their unusual physical
properties and unique spectrum of chemical reactivity; it is not an exaggeration to say that …

An asymmetric hydrogenation reaction of benzoxazinones has been accomplished via a
relay iron/chiral Brønsted acid catalysis. This approach provides a variety of chiral …

Jedem Substrat seinen Katalysator: Die Titelreaktion zwischen cyclischen Ketonen und β, γ‐
ungesättigten α‐Ketoestern gelang in einem neuartigen difunktionellen System unter …

Cooperative catalysis, inspired by the early findings on enzymatic activation, is a fast
growing research area. It refers to the combination of two or more catalytic species that …