Ni-Catalyzed Aryl Sulfide Synthesis through an Aryl Exchange Reaction
作者:Ryota Isshiki、Miki B. Kurosawa、Kei Muto、Junichiro Yamaguchi
DOI:10.1021/jacs.1c04215
日期:2021.7.14
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
Synthesis of indoles through Rh(III)-catalyzed C–H cross-coupling with allyl carbonates
作者:Tian-Jun Gong、Wan-Min Cheng、Wei Su、Bin Xiao、Yao Fu
DOI:10.1016/j.tetlet.2013.11.065
日期:2014.3
A practical Rh-catalyzed reaction was developed to achieve 2-alkyl-substituted indole synthesis. The reaction can tolerate a variety of synthetically important functional groups. The indole products can also be transformed into other important skeletons. Two bioactive compounds, that is indomethacin and pravadoline were prepared using the new method. (C) 2014 Published by Elsevier Ltd.
Cyanation of Phenol Derivatives with Aminoacetonitriles by Nickel Catalysis
nickel-catalyzed cyanation of phenol derivatives with metal-free cyanating agents, aminoacetonitriles, is described. A nickel-based catalytic system consisting of a unique diphosphine ligand such as dcype or dcypt enables the cyanation of versatile phenol derivatives such as aryl carbamates and aryl pivalates. The use of aminoacetonitriles as a cyanating agent leads to an environmentally and easy-to-use method
Palladium-catalyzed monoselective C–H borylation of acetanilides under acidic conditions
作者:Bin Xiao、Yi-Ming Li、Zhao-Jing Liu、Han-Yi Yang、Yao Fu
DOI:10.1039/c2cc31737k
日期:——
A practical Pd-catalyzed reaction was developed to achieve CâH activation/CâB cross-coupling of acetanilides under acidic conditions. The new reaction shows a good functional group tolerance and an exclusive mono-selectivity. This CâH borylation method may provide a generally applicable route for the conversion of CâH moieties into many other types of bonds.