Some of the simplest and most powerful carbon-carbon bond forming strategies take
advantage of readily accessible ubiquitous motifs: carbonyls and olefins. Here we report a …

For a long time, allenes—and cumulenic systems in general—played a relatively minor role
in Diels–Alder cycloadditions. This situation has changed, since allenes are more readily …

Lewis acid catalysts have been shown to promote carbonyl–olefin metathesis through a
critical four-membered-ring oxetane intermediate. Recently, Brønsted-acid catalysis of …

Herein we describe the first approach to 3-oxidopyrylium ions from a linear precursor.
Heating bis (1-cyanovinyl acetate) in the presence of a trace amount of pyridinium p …

Summary This Chapter Contains Sections titled: 2+ 2‐Cycloaddition 2+ 3‐Cycloaddition 2+
4‐Cycloaddition Miscellaneous References Tetrafluorothiophene S, S‐dioxide is a potent …

The development of new reactivity modes within chemistry has allowed for innovations and
discoveries in fields across the natural sciences. These breakthroughs have influence on …

The development of sustainable and selective catalytic procedures for carbon-carbon and
carbon-heteroatom bond formation is of the utmost importance to the field of synthetic …

Organic molecules are primarily made up of carbon-carbon (CC) bonds. As a result,
methods that promote the formation of these bonds are of the utmost importance in synthetic …

Carbon-carbon or carbon-heteroatom (C–X= N, O, S etc.) bond formation via
carbonhydrogen (C–H) bond functionalization is one of the greatest interests in modern …