THIONAPHTHEN DERIVATIVES .3. CHARACTERISATION OF SOME 5-SUBSTITUTED DERIVATIVES
THIONAPHTHEN DERIVATIVES .3. CHARACTERISATION OF SOME 5-SUBSTITUTED DERIVATIVES
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DOI:
10.1039/jr9600000938
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发表时间:
1960-01-01
期刊:
影响因子:
--
通讯作者:
REID, ST
中科院分区:
文献类型:
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作者:
MARTINSMITH, M;REID, ST
IN an investigation of thionaphthen derivatives as possible biologically active compounds, it was necessary to characterise various derivatives of some 5-substituted thionaphthens. 5-Hydroxythionaphthen underwent mononitration in cold acetic acid to form 5-hydroxy-4-nitrothionaphthen, the constitution of which was proved by an alternative synthesis from the known 5-amino-knitrothionaphthen employing nucleophilic displacement of the amino-group. 5-Hydroxythionaphthen-2-carboxylic acid was shown also to be nitrated directly in the. l-position, the product being identical with an authentic