One of the simplest organic functional groups, the alkyne, offers a broad canvas for the
design of cascade transformations in which up to three new bonds can be added to each of …

Helicenes are attractive non-planar polycyclic aromatic hydrocarbons with unique optical
and electronic properties. In recent years, the chemistry of “multiple helicenes” with plural …

Dibenzo [hi, st] ovalene (DBOV) has excellent photophysical properties, including strong
fluorescence and high ambient stability. Moreover, the optical blinking properties of DBOV …

Since the discovery by Ullmann and Bielecki in 1901, reductive dimerization (or
homocoupling) of aryl halides has been extensively exploited for the generation of a range …

Optically active triple helicenes (TH-1) were prepared via a palladium-catalyzed
enantioselective cross-cyclotrimerization of two helicenyl arynes 5, which are generated in …

In contrast to zero-bandgap graphene, nanostructures of graphene, such as graphene
quantum dots (GQDs) and graphene nanoribbons (GNRs) have open bandgaps due to the …

As the simplest alkyne and an abundant chemical feedstock, acetylene is an ideal two-
carbon building block. However, in contrast to substituted alkynes, catalytic methods to …

Annulative π‐extension (APEX) reaction has become a powerful tool for the precise
synthesis of well‐defined polycyclic aromatic hydrocarbons (PAHs) such as nanographene …

Conspectus Do not bend the triple bonds! This familiar undergraduate mantra must be
disobeyed if the alkyne group is used as a building block in molecular construction. This …

The synthesis of unprecedented BINOL‐derived cationic phosphonites is described.
Through the use of these phosphanes as ancillary ligands in AuI catalysis, a highly regio …