CCXXXVII.?The preparation of phthalamic acids and their conversion into anthranilic acids
โ Scribed by Chapman, Ernest; Stephen, Henry
- Book ID
- 118743036
- Publisher
- The Royal Society of Chemistry
- Year
- 1925
- Tongue
- English
- Weight
- 469 KB
- Volume
- 127
- Category
- Article
- ISSN
- 0368-1645
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๐ SIMILAR VOLUMES
The nucleophilic ring opening of gem-dicyanoepoxides by LiBr or Li 2 NiBr 4 , in the presence of hydroxylamine derivatives leads to new ฮฑ-halo hydroxamic acids. These compounds has been used in the synthesis of ฮฑfunctionalized hydroxamic acids, ฮฑ-hydroxy and ฮฑ-amino acids in good yields.
Acylamino carboxylic acids were degradated by the Hunsdiecker-reaction; the bromo-derivatives were reacted with NaPO(OQH5)z. Aminophosphonic acids were obtained by acidic hydrolysis, and half-blocked derivatives by the selective removal of masking substituents. Two phosphonopeptides [e.g. Alafosfali
A =ETI-IOD has been developed by which anthraquinone may be determined quantitatively in mixtures containing also phenanthraquinone, anthracene, phenanthrene, phthalic anhydride, phthalic acid, or other oxidation products of anthracene or phenanthrene. It consists essentially in reducing the anthraq