Electrochemical generation of alkyl and aryl isocyanides
作者:Antoio Guirado、Andrés Zapata、Jesús L. Gómez、Luis Trabalón、Jesús Gálvez
DOI:10.1016/s0040-4020(99)00509-8
日期:1999.7
An efficient and widely applicable reagent-free method for the synthesis of alkyl and arylisocyanides has been established. The electrochemical reduction of alkyl and aryl carbonimidoyl dichlorides under constant cathode potential leads to the corresponding isocyanides in almost quantitative yields. The availability of the starting materials, the mildness of the reaction conditions as well as the
[EN] IMIDAZOPYRIDINE DERIVATIVES AS MODULATORS OF TNF ACTIVITY<br/>[FR] DÉRIVÉS D'IMIDAZOPYRIDINE UTILISABLES EN TANT QUE MODULATEURS DE L'ACTIVITÉ TNF
申请人:UCB PHARMA SA
公开号:WO2014009295A1
公开(公告)日:2014-01-16
A series of imidazo[l,2-a]pyridine derivatives of formula (I), being potent modulators of human TNFa activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.
advantages of our methodology include an increased synthesis speed, very mild conditions giving access to hitherto unknown or highly reactive classes of isocyanides, rapid access to large numbers of functionalized isocyanides, increased yields, high purity, proven scalability over 5 orders of magnitude, increased safety and less reaction waste resulting in a highly reduced environmental footprint. For example
The first [1+1+1] cycloaddition reaction has been achieved on the Ag(111) surface to afford the aza[3]radialenes. The chlorine substituents in the isocyanides ensured the selectivity and orientational order of the products via the steric hindrance-directed molecular assembly.