Untersuchungen �ber Perylen und seine Derivate

An overview of microwave assisted cyanation reactions

“…[11] Moreover, Profound developments in the field of cyanation reactions have been evident since the first report by Pongratz in 1927. [12] Sandmeyer reaction [13,14] and the Rosenmund von Braun [15] reaction were the two classical methods employed in the nitrile synthesis. These methods required harsh conditions such as elevated reaction temperature, work up, and generated large amount of metal wastes.…”

Recent Trends in the Iron‐Catalyzed Cyanation Reactions

“…[1,2,3,4,5] Cyanation reactions have gained prime focus from the time it was developed in the early 1927 by Pongratz. [6] Two of the earlier classical approaches for the synthesis of nitriles are the Sandmeyer reaction [7] and the Rosenmund von Braun reaction. [8,9,10] Different transition metals such as Pd, [11,12,13] Cu, Ni etc.…”

“…These compounds are widely used in different chemical conversions and are extensively used in many fields like the synthesis of pesticides, drugs, herbicides etc [1,2,3,4,5] . Cyanation reactions have gained prime focus from the time it was developed in the early 1927 by Pongratz [6] . Two of the earlier classical approaches for the synthesis of nitriles are the Sandmeyer reaction [7] and the Rosenmund von Braun reaction [8,9,10] .…”

Synthesis, characterization and catalytic performance of Pd(II) complex immobilized on Fe3O4@SiO2 nanoparticles for the ligand‐free cyanation of aryl halides using K4Fe(CN)6

“…Over the last years, various ligands (e.g. ethylenediamine and N , N ′‐dimethylethylenediamine) and homogeneous catalytic systems have been developed for the preparation of aryl nitriles using K 4 Fe(CN) 6 , although difficulties and challenges in recovering and reusing the nanocatalysts limited their widespread application in industry. Therefore, the development of new, efficient and convenient techniques for the preparation of aryl nitriles under heterogeneous catalytic systems and ligand/additive‐free conditions is still demanding in wide areas of research and industry.…”