101080-58-4Relevant academic research and scientific papers
Copper-Mediated sp 2 C-H Chlorination with Trichloroacetamide Using a Removable Directing Group
Lee, Wan-Chen Cindy,Tehrani, Arya,Li, Jie Jack
, p. 2865 - 2872 (2017)
2-Aminophenyl-1 H -pyrazole was discovered as a removable, bidentate directing group for copper-mediated aerobic oxidative sp 2 C-H bond chlorination employing trichloroacetamide as a new chlorine source. When Cu(OAc) 2 was employed as the copper source, 1,1,3,3-tetramethylguanidine (TMG) as an organic base, the reaction, optimally carried out overnight in DMSO at 80 °C in open air, produced a variety of mono- and dichlorinated products in moderate to excellent yields. This directing group can be removed oxidatively with cerium ammonium nitrate (CAN).
Acid-promoted palladium(II)-catalyzed ortho-halogenation of primary benzamides: En route to halo-arenes
Jaiswal, Yogesh,Kumar, Amit
, (2019/08/26)
Br?nsted acid-promoted palladium(II)-catalyzed regioselective installation of halogens (Br, Cl, and I) to the aromatic ring of benzamide derivatives has been achieved using primary amides. A wide variety of benzamides were compatible under established conditions to afford the halogenated products without installing any external auxiliary. Mild reaction conditions, use of primary amide as a directing group, external additive-free conditions, and gram-scale reaction are some appealing features of this protocol. Detailed experimental results revealed that Br?nsted acid plays a critical role in this transformation.
TRIAZOLONE COMPOUNDS AS mPGES-1 INHIBITORS
-
Page/Page column 82, (2014/01/08)
The present disclosure is directed to compounds of formula (I), and pharmaceutically acceptable salts thereof, as mPGES-1 inhibitors. These compounds are inhibitors of the microsomal prostaglandin E synthase-1 (mPGES-1) enzyme and are therefore useful in the treatment of pain and/or inflammation from a variety of diseases or conditions, such as asthma, osteoarthritis, rheumatoid arthritis, acute or chronic pain and neurodegenerative diseases.
