331-30-6Relevant articles and documents
An Electrochemical Beckmann Rearrangement: Traditional Reaction via Modern Radical Mechanism
Tang, Li,Wang, Zhi-Lv,He, Yan-Hong,Guan, Zhi
, p. 4929 - 4936 (2020/08/21)
Abstract: Electrosynthesis as a potential means of introducing heteroatoms into the carbon framework is rarely studied. Herein, the electrochemical Beckmann rearrangement, i. e. the direct electrolysis of ketoximes to amides, is presented for the first time. Using a constant current as the driving force, the reaction can be easily carried out under neutral conditions at room temperature. Based on a series of mechanistic studies, a novel radical Beckmann rearrangement mechanism is proposed. This electrochemical Beckmann rearrangement does not follow the trans-migration rule of the classical Beckmann rearrangement.
HETEROCYCLIC INHIBITORS OF HISTAMINE RECEPTORS FOR THE TREATMENT OF DISEASE
-
Page/Page column 99, (2011/10/05)
The present invention relates to compounds and methods which may be useful as inhibitors of H1R and/or H4R for the treatment or prevention of inflammatory, autoimmune, allergic, and ocular diseases.
A convenient synthesis of the potent mutagen 3,4,8-trimethyl-3H-imidazo[4,5-f]quinoxalin-2-amine.
Grivas
, p. 213 - 217 (2007/10/02)
The highly mutagenic title compound (4,8-DiMeIQx) was synthesized in 13% overall yield from 2-fluoro-5-nitrotoluene in eight operations. The average operation yield was 83%. The reaction sequence used gave, in addition to the title compound, the isomer 3,4,7-trimethyl-3H-imidazo[4,5-f]quinoxalin-2-amine (4,7-DiMeIQx).