Pyridazinedione derivatives useful in treatment of neurological disorders
申请人:Imperial Chemical Company
公开号:US05652239A1
公开(公告)日:1997-07-29
The present invention relates to pyridazino[4,5-b]indoles, and pharmaceutically useful salts thereof, which are excitatory amino acid antagonists and which are useful when such antagonism is desired such as in the treatment of neurological disorders. The invention further provides pharmaceutical compositions containing pyridazino[4,5-b]indoles as active ingredient, and methods for the treatment of neurological disorders.
Facile Transfer Hydrogenation of Azo Compounds to Hydrazo Compounds and Anilines by Using Raney Nickel and Hydrazinium Monoformate
作者:H. S. Prasad、Shankare Gowda、D. Channe Gowda
DOI:10.1081/scc-120027231
日期:2004.12.31
Abstract Azo compounds are conveniently reduced to either partially reduced hydrazo compounds or completely reduced anilines by employing Raney nickel in presence of hydrazinium monoformate depending upon reaction conditions. The other reducible moieties like ‒COOH and halogens are tolerated. The reduction process is selective, rapid and high yielding.
Tandem selective reduction of nitroarenes catalyzed by palladium nanoclusters
作者:Ziqiang Yan、Xiaoyu Xie、Qun Song、Fulei Ma、Xinyu Sui、Ziyu Huo、Mingming Ma
DOI:10.1039/c9gc03957k
日期:——
borohydride (NaBH4) in aqueous solution under ambient conditions, which can selectively produce five categories of nitrogen-containing compounds: anilines, N-aryl hydroxylamines, azoxy-, azo- and hydrazo-compounds. The catalyst is in situ-generated ultrasmall palladium nanoclusters (Pd NCs, diameter of 1.3 ± 0.3 nm) from the reduction of Pd(OAc)2 by NaBH4. These highlyactivePd NCs are stabilized by
Mg/Triethylammonium Formate: A Useful System for Reductive Dimerization of Araldehydes into Pinacols; Nitroarenes into Azoarenes and Azoarenes into Hydrazoarenes
作者:M. GEETA PAMAR、P. GOVENDER、K. MUTHUSAMY、RUI W. M. KRAUSE、H.M. NANJUNDASWAMY
DOI:10.13005/ojc/290316
日期:2013.9.30
of triethylammoniumformate in the presence of magnesium for the efficient intermolecular pinacol coupling using MeOH as solvent. Various aromatic carbonyls underwent smooth reductive coupling to give the corresponding 1,2-diols. A series of azo compounds were obtained by the reductive coupling of nitroaromatics while azo compounds were reduced to the corresponding hydrazoarenes by this system. There