Heterocyclization of amides of alkenylcarboxylic acids
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چکیده
منابع مشابه
The fate of certain organic acids and amides in the rabbit; nitrobenzoic acids and amides.
Studies in vitro (Bray, James, Ryman & Thorpe, 1948a) have shown that rabbit-liver extracts are able to hydrolyze all three nitrobenzamides. The para isomer is most readily attacked, the average hydrolysis being 82 %; under the same conditions the meta and ortho isomers are hydrolyzed to the extent of 31 and 23 %, respectively. It was, therefore, of interest to study the metabolism of these com...
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Heretofore the amides of glucuronic, galacturonic, and mannuronic acid were not known, and methods were not available for their preparation. It has now been found possible to obtain the amides of uronic acids from the corresponding 1-amino-uronamides by selective hydrolysis of the glycosylamino group. An aqueous solution of the 1-amino-uronamide is treated with an acid or a suitable cation exch...
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The synthesis of aryl amides via the reactions of carboxylic acids and isocyanides in methanol was carried out in 78-95% yields under ultrasound irradiation. The method has wide applicability, and the protocol is mild, fast and efficient compared to the existing methods based on silent conditions.
متن کاملNew complexes of peroxidases with hydroxamic acids, hydrazides, and amides.
Horseradish peroxidase forms spectroscopically distinct, reversible complexes with hydroxamic acids (R-CONHOH), hydrazides (RCO-NHNH2), amides (RCONH2), and oc-hydroxyketones (RCO--CHsOH). Binding of these compounds to the enzyme depends on the polar and steric character of R and the hydrogen bonding capacity of-COX-Y (X-Y = NH-OH, NH-NH,, NH-H, CH,OH). Hydroxamate anions and hydrazide cations ...
متن کاملVol. 42 ELIMINATION OF AMINOBENZOIC ACIDS AND AMIDES
Bamberger, E. & Pyman, F. L. (1909). Ber. dt8ch. chem. Ge8. 42, 2310. Baumann, E. & Preusse, C. (1879). Hoppe-Seyl. Z. 3, 156. Bratton, A. C. & Marshall, J. K. Jr. (1939). J. biol. Chem. 128, 537. Bray, H. G., James, S. P., Ryman, B. E. & Thorpe, W. V. (1948). Biochem. J. 42, 274. Bray, H. G., Neale, F. C. & Thorpe, W. V. (1946a). Biochem. J. 40, 134. Bray, H. G., Neale, F. C. & Thorpe, W. V. (...
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ژورنال
عنوان ژورنال: Journal of Organic and Pharmaceutical Chemistry
سال: 2015
ISSN: 2518-1548,2308-8303
DOI: 10.24959/ophcj.15.836