5651-47-8Relevant articles and documents
Flow hydrodediazoniation of aromatic heterocycles
R?der, Liesa,Nicholls, Alexander J.,Baxendale, Ian R.
, (2019/06/05)
Continuous flow processing was applied for the rapid replacement of an aromatic amino group with a hydride. The approach was applied to a range of aromatic heterocycles, confirming the wide scope and substituent-tolerance of the processes. Flow equipment was utilized and the process optimised to overcome the problematically-unstable intermediates that have restricted yields in previous studies relying on batch procedures. Various common organic solvents were investigated as potential hydride sources. The approach has allowed key structures, such as amino-pyrazoles and aminopyridines, to be deaminated in good yield using a purely organic-soluble system.
Direct carboxylation of simple arenes with CO2 through a rhodium-catalyzed C-H bond activation
Suga, Takuya,Mizuno, Hajime,Takaya, Jun,Iwasawa, Nobuharu
supporting information, p. 14360 - 14363 (2015/02/19)
Direct carboxylation of simple arenes under atmospheric pressure of CO2 is achieved through a rhodium-catalyzed C-H bond activation without the assistance of a directing group. Various arenes such as benzene, toluene, xylene, electron-rich or electron-deficient benzene derivatives, and heteroaromatics are directly carboxylated with high TONs. This journal is
ANILINOPYRAZOLE DERIVATIVES USEFUL FOR THE TREATMENT OF DIABETES
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Page/Page column 121-122, (2010/11/26)
The present invention relates to anilinopyrazole compounds of formula (1) in which R3 represents an aromatic 5- or 6-membered heteroaromatic ring which is optionally fused to phenyl, said heterocycle or fused heterocycle is optionally substituted, X represents a carboxylic acid, ester or amide, or sulfonamide, and the remaining groups are as defined in the text. It also relates to pharmaceutical compositions containing these materials and, and methods for treating diabetes and related disorders using these materials.