Amination of aryl chlorides and fluorides toward the synthesis of aromatic amines by palladium-catalyzed route or transition metal free way: Scopes and limitations

Surfactant‐Induced Preparation of Highly Dispersed Ni‐Nanoparticles Supported on Nanocrystalline ZrO2for Chemoselective Reduction of Nitroarenes

“…Contrary to it, p ‐aminophenol is an important feedstock for synthesis of various analgesic and antipyretic drugs in pharmaceuticals. p ‐aminophenol obtained from p ‐nitrophenol reduction is an important intermediate for synthesis of paracetamol and also other much more valuable chemicals for the synthesis of dyestuffs, photographic chemicals, polymer, surfactant, corrosion inhibitor and anti‐corrosion lubricant . Similarly, there are some other useful amines containing other reducible groups being utilized by pharmaceutical companies.…”

ChemInform Abstract: Ultrasound Assisted Nucleophilic Cyclization of Tetrafluoroterephthalonitrile: An Efficient Way to Fluorine‐Containing Heterocycles.

“…For example, it can be hydrolyzed and then reduced to form 2,3,5,6-tetrafluoro-1,4benzenedimethanol, which is the key intermediate for the preparation of pesticide tefluthrin. The structure of b was then determined by IR, 1 H NMR, 13 C NMR, MS spectroscopy as well as crystal X-ray analysis (Fig. The introduction of fluorine atoms into MOFs can adjust the coordination arrays, the host organizations and the cavities, exhibiting high density gas uptake and extraordinary hysteretic sorption of H 2 abilities.…”

“…Although various methods for the S N Ar reaction of aryl fluorides possessing strong electron-withdrawing groups in the ortho or para position have been reported, [10][11][12][13] some drawbacks such as low yields, long reaction times, harsh conditions, complex by-products are still issues to be addressed. In addition, nucleophilic cyclization of the aryl fluorides to give fluorine-containing heterocycles is much less common.…”

Ultrasound Assisted NucleophilicCyclization of Tetrafluoroterephthalonitrile: An Efficient Way to Fluorine‐Containing Heterocycles

“…Although various methods for the S N Ar reaction of aryl fluorides possessing strong electron‐withdrawing groups in the ortho or para position have been reported, some drawbacks such as low yields, long reaction times, harsh conditions, complex by‐products are still issues to be addressed. In addition, nucleophilic cyclization of the aryl fluorides to give fluorine‐containing heterocycles is much less common.…”