Surfactants, due to their special amphiphilic structure, can form aggregation systems through self-assembly and serve as "microreactors" or templates to prepare new nanomaterials with various structural morphologies. At the same time, surfactants can effectively reduce surface energy and have broad application prospects in the stable existence of nanoparticles. STREM's high-purity...

      N-Heterocyclic Carbene (NHC)–Gold Complexes are not only widely used in catalytic transformations in organic chemistry but also find applications in the synthesis of organic light-emitting diodes (OLEDs) and next-generation optoelectronic materials, making them powerful tools in modern synthesis. However, the synthesis of such complexes often involves toxic...

      As the third category of chiral catalysts after enzymes and metals, organocatalysts offer advantages such as easy synthesis, low cost, mild reaction conditions, and no metal residue, making them an important pathway to achieving “perfect reaction chemistry.”       Chiral thioureas, a novel class of hydrogen-bond...

The Pechmann condensation is a reaction in which phenols and β-keto esters react under acid catalysis to synthesize coumarin derivatives. It was first discovered by German chemist Hans Freiherr von Pechmann and is named after him. Coumarins are important intermediates in pharmaceuticals, agrochemicals, and functional materials. This reaction offers a...

The Ullmann reaction uses copper metal to convert aryl halides into biaryl compounds. It was first reported in 1901 by Fritz Ullmann and his student Bielecki, and is named after Fritz Ullmann. Although the reaction mechanism is not yet fully understood, two major pathways have been proposed. One is a...

The Pinner Reaction refers to the acid-catalyzed reaction of nitriles with alcohols to form imidate salts (alkyl imidate hydrochlorides), known as Pinner salts, which can further react with water or ammonia to yield esters or amidines. This reaction was first discovered in 1877 by Adolf Pinner and is named after...