Hydrogen activation by stable carbenes is rare and typically proceeds through π-face, non-least-motion pathways. Now, a neutral σ0π2 carbene has been synthesized and shown to cleave H2 at room tempera...

Could the discovery of a catalyst in which aluminium shifts easily between oxidation states be the beginning of the end for costly transition-metal catalysts?

Aluminium redox catalysis is achieved with a low-valent aluminium species, carbazolylaluminylene, enabling cyclotrimerization of alkynes and producing diverse benzene derivatives.

ConspectusFor many years, carbenes were regarded as fleeting intermediates, elusive to both isolation and direct observation. This perception was overturned when Bertrand isolated the first singlet ca...

A boryl-isodiazomethyl anion featuring a bent eneyne-type B=N–N≡C scaffold is isolated and structurally characterized. The highly nucleophilic boron-bound nitrogen centre makes this species an effecti...

Germavinylidenes, the heavier congeners of vinylidenes, have long remained elusive, both as free species and in Lewis base-stabilized forms. Herein, the authors report the isolation of a base-stabiliz...

Despite more than a century of organolead chemistry, all isolable organolead compounds have thus far been confined to Pb–C single bonds. Here we disclose the synthesis, structural authentication, and ...

Azo compounds (R─N═N─R′) are a foundational class of nitrogen-containing molecules. In contrast to the bench-stability of many azo derivatives, monomeric diboryl diazenes (R2BN═NBR2) have long eluded ...

An aromatic metallo-annulene, comprising a 15-carbon macrocycle enclosing an osmium complex, with the metal residing within the plane of the macrocycle is reported.

We report facile [3+2] cycloaddition reactions utilizing potassium diazaphospholidinyl diazomethylide as an electron-rich 1,3-dipole, reacting with various dipolarophiles. The regioselectivity of the...

Compared to common vinyl anions, their heavier heteronuclear analog, silagermenides [R2Si═GeR]ˉ, remain exceedingly rare. Herein, we present a systematic investigation of silagermenides, synthesized ...