Reactions of organic anions. Part 109. Vicarious nucleophilic substitution of hydrogen in nitroarenes with carbanions of .alpha.-haloalkyl phenyl sulfones
Specific ortho orientation in the vicarious substitution of hydrogen in aromatic nitro compounds with carbanion of chloromethyl phenyl sulfone
作者:M. Makosza、T. Glinka、A. Kinowski
DOI:10.1016/s0040-4020(01)91141-x
日期:1984.1
Vicariousnucleophilic substitution of hydrogen atoms in nitroarenes with chloromethylphenyl sulfone proceeds selectively ortho to the nitro group when carried out in t-BuOK/THF base/solvent system. In the majority of 3-substituted nitrobenzene derivatives substitution occurs at the most hindered position 2. These conditions offer an efficient method of synthesis of 2,6 and 2,3-disubstituted nitrobenzene
Substituted-3-sulfonylindazole derivatives as 5-hydroxytryptamine-6 ligands
申请人:Elokdah Mahmoud Hassan
公开号:US20070037802A1
公开(公告)日:2007-02-15
The present invention provides a compound of formula I and the use thereof for the treatment of a central nervous system disorder related to or affected by the 5-HT6 receptor.
本发明提供了一种式I化合物及其用于治疗与5-HT6受体相关或受其影响的中枢神经系统疾病的用途。
Substituent Effects on the Electrophilic Activity of Nitroarenes in Reactions with Carbanions
作者:Sylwia Błażej、Mieczysław Mąkosza
DOI:10.1002/chem.200800821
日期:2008.12.8
as a model reaction because it meets key criteria, such as the wide range of substituents that can be present on the nitrobenzene ring, a low sensitivity to steric hindrance, and in particular the possibility of ensuring conditions in which the overall relative rates of reaction in competitive experiments are equal to the relative rates of nucleophilic addition. The values of relative rates of addition