N,N′-Carbonyldiimidazole-Mediated Amide Coupling: Significant Rate Enhancement Achieved by Acid Catalysis with Imidazole·HCl
摘要:
Over a series of 10 aromatic amines we show the rate of CDT mediated amidation to be significantly enhanced upon introduction of imidazole center dot HCl as a proton source for acid catalysis. Our work supports and provides an application for previous investigations into the imidazolium effect, thus increasing the scope of CDT as an amide-coupling reagent with aromatic amines. The influence of the relative pK(a) of the amines studied on the rate of reaction was also investigated.
An efficient, eco-friendly and sustainable tandem oxidative amidation of alcohols with amines catalyzed by heteropolyanion-based ionic liquids via a bifunctional catalysis process
eco-friendly and sustainable method for the tandem oxidative amidation of alcohols with amines has been reported. Using heteropolyanion-based ionic liquids as the catalyst and tert-butyl hydroperoxide as the oxidant, this amidation reaction is operationally straightforward and provides a series of primary, secondary and tertiary amidesderivatives in moderate to good yields. Solvent-free media, microwave-promoted
A procedure for the synthesis of N-heteroaryl amides directly from oxidative amidation of aldehydes catalyzed by heteropolyanion-based ionic liquids has been reported. The proposed N-directing dual-catalysis mechanism was briefly investigated.
[EN] 4 - IMIDAZOPYRIDAZIN- 1 -YL-BENZAMIDES AND 4 - IMIDAZOTRIAZIN- 1 - YL - BENZAMIDES AS BTK- INHIBITORS<br/>[FR] 4-IMIDAZOPYRIDAZIN-1-YL-BENZAMIDES ET 4-IMIDAZOTRIAZIN-1-YL-BENZAMIDES EN TANT QU'INHIBITEURS DE BTK
申请人:MSD OSS BV
公开号:WO2013010868A1
公开(公告)日:2013-01-24
The present invention relates to 6-5 membered fused pyridine ring compounds according to formula (I) or a pharmaceutically acceptable salt thereof or to pharmaceutical compositions comprising these compounds and to their use in therapy. In particular, the present invention relates to the use of 6-5 membered fused pyridine ring compounds according to formula I in the treatment of Brutons Tyrosine Kinase (Btk) mediated disorders.
Bromodomain and extra-terminal domain (BET) proteins are epigenetic readers that bind to acetylated lysines in histones. Among them, BRD4 is a candidate target molecule of therapeutic agents for diverse diseases, including cancer and inflammatory disease. As a part of our continuing structural development studies of thalidomide to obtain a broad spectrum of biological modifiers based on the ‘multi-template’
Blue Fluorescence from BF<sub>2</sub> Complexes of <i>N,O</i>-Benzamide Ligands: Synthesis, Structure, and Photophysical Properties
作者:Minoru Yamaji、Shin-ichiro Kato、Kazuhiro Tomonari、Michitaka Mamiya、Kenta Goto、Hideki Okamoto、Yosuke Nakamura、Fumito Tani
DOI:10.1021/acs.inorgchem.7b02013
日期:2017.10.16
organic material applications. We prepared five types of benzamides having pyridine, pyridazine, pyrazine, and pyrimidine rings and successfully converted them into three types of the difluoroboronated complexes, [email protected], as novel blue fluorophores. [email protected] having a pyridine moiety ([email protected]) showed no fluorescence in solution, whereas [email protected] of pyridazine and pyrazine