Synthesis of Two Novel Tricyclic Rings: Triazolo[4,5-g]quinolines and Pyrido[2,3-g]quinoxalines Derived from 6,7-Diaminoquinolines
摘要:
A general simple route for the synthesis of triazolo[4,5-g]quinolines and pyrido[2,3-g]quinoxalines is described. The heterocycles obtained were fully characterised by their spectroscopical properties. A revision of the nitration of the 2,3-dichloroacetanilide is also discussed, since it afforded the request nitro derivative to build up the key intermediate 6,7-diaminoquinolines.
Synthesis of Two Novel Tricyclic Rings: Triazolo[4,5-g]quinolines and Pyrido[2,3-g]quinoxalines Derived from 6,7-Diaminoquinolines
摘要:
A general simple route for the synthesis of triazolo[4,5-g]quinolines and pyrido[2,3-g]quinoxalines is described. The heterocycles obtained were fully characterised by their spectroscopical properties. A revision of the nitration of the 2,3-dichloroacetanilide is also discussed, since it afforded the request nitro derivative to build up the key intermediate 6,7-diaminoquinolines.
The influence of chlorine and sulphonate substituents on the visible absorption maxima of some azo dyes
作者:David Greenwood、Michael G. Hutchings、Brian Lamble
DOI:10.1039/p29860001107
日期:——
A total of 110 arylazo dyes have been prepared, based on five benzenoid and heterocyclic coupling components, and containing combinations of chlorine and sulphonate (sulpho) substituents in the diazo components. Their visibleabsorptionmaxima have been analysed in order to determine the degree to which chloro and sulpho substituentinfluences are constant and transferable, both within a series, and
P-Phenylene bis[imino(thiocarbonyl)] diphosphoramidic acid esters as
申请人:American Cyanamid Company
公开号:US04239708A1
公开(公告)日:1980-12-16
There are provided substituted p-phenylene bis[imino(thiocarbonyl)] diphosphoramidic acid esters, a method for the preparation of said esters and unsubstituted derivatives thereof and a method for controlling helminths in warm-blooded animals by administering to said animals an anthelmintically effective amount of said unsubstituted or substituted p-phenylene bis[imino(thiocarbonyl)] diphosphoramidic acid ester.
Method for the control of cattle grubs employing a phenylene
申请人:American Cyanamid Company
公开号:US04137310A1
公开(公告)日:1979-01-30
There is provided a method for controlling the larvae of heel flies which parasitize ruminants and other warm-blooded animals by administering to said animals an effective amount of an unsubstituted or substituted phenylene bis[imino(thio)carbonyl]diphosphor(thio)amidic acid ester.
An efficient one-step synthesis of 4-nitro-N-aryl substituted glutarimides, succinimides and maleimides in polyphosphoric acid is described together with the subsequent reduction to the corresponding anilines. The scope and limitation of this cyclocondensation are presented.