Alkyne, nitrile, and CO reacted in a [2+2+1] cycloaddition

Reductive Aza-Pauson-Khand Reaction Gives Unsaturated γ-Lactams

New Synthesis Route for Ketoprofen
Five-step synthesis starting from cyclohexanone with 44 % overall yield

Hydrodefluorination of Perfluoroalkyl Arenes
Nickel-catalyzed reaction could be useful to dispose of perfluoroalkyl compounds
![Sc(III)-Catalyzed Synthesis of Cyclopenta[b]indoles](https://www.chemistryviews.org/wp-content/uploads/2023/05/cyclopentaindoles2-125x94.png)
Sc(III)-Catalyzed Synthesis of Cyclopenta[b]indoles
Annulation of vinyl diazoacetates with indole-derived α,β-unsaturated imines

Skin-Inspired Fabric for Radiative Cooling
New material can achieve temperature drop of 12.6 °C below the ambient conditions

Titanium-Based MOF for the Removal of Cr(VI) from Water
Metal–organic framework (MOF) functionalized with amidoxime groups

Cascade Heck-Alkylation Reaction Gives α-Alkyl Tryptophans
Reaction of amino acid esters with N-(2-iodophenyl)allenamides gives optically active products

Nonstabilized Carbenes Used for Asymmetric Cyclopropanations
Transition metal carbenoids generated from dihaloalkane precursors

Copper-Catalyzed Synthesis of Carbonic Acid Anhydrides
Blue-light-mediated synthesis starting from alkyl iodides and carbon monoxide

Total Syntheses of the Diterpenoids Scabrolide A and Yonarolide
The carbocyclic skeleton was efficiently constructed from two chiral-pool-derived fragments using a [5,5]-bicyclic lactone