66318-88-5Relevant articles and documents
Ni-Catalyzed Aryl Sulfide Synthesis through an Aryl Exchange Reaction
Isshiki, Ryota,Kurosawa, Miki B.,Muto, Kei,Yamaguchi, Junichiro
, p. 10333 - 10340 (2021/07/21)
A Ni-catalyzed aryl sulfide synthesis through an aryl exchange reaction between aryl sulfides and a variety of aryl electrophiles was developed. By using 2-pyridyl sulfide as a sulfide donor, this reaction achieved the synthesis of aryl sulfides without using odorous and toxic thiols. The use of a Ni/dcypt catalyst capable of cleaving and forming aryl-S bonds was important for the aryl exchange reaction between 2-pyridyl sulfides and aryl electrophiles, which include aromatic esters, arenol derivatives, and aryl halides. Mechanistic studies revealed that Ni/dcypt can simultaneously undergo oxidative additions of aryl sulfides and aromatic esters, followed by ligand exchange between the generated aryl-Ni-SR and aryl-Ni-OAr species to furnish aryl exchanged compounds.
Cp2Ni-KOt-Bu-BEt3 (or PPh3) catalyst system for direct C - H arylation of benzene, naphthalene, and pyridine
Kobayashi, Osamu,Uraguchi, Daisuke,Yamakawa, Tetsu
supporting information; experimental part, p. 2679 - 2682 (2009/10/10)
Ni-catalyzed direct C - H arylation of benzene and naphthalene using aryl halides was investigated. For the first time, the arylation was successfully catalyzed by Cp2Ni (5 mol %) in the presence of KOt-Bu and BEt 3. This Ni catalyst system was also applied to direct C - H arylation of pyridine, an electron-deficient heteroarene; PPh3 was used instead of BEt3 in this case.
