Chemistry of imidic compounds

Nε-Cyclosuccinyllysine: Synthesis and Formation from Hemisuccinylated Polylysine and Its Hapten Conjugates with Sulfamethoxazole during Acid Hydrolysis

“…In 13 mM solution in 0.1 M sodium hydroxide, 4 was converted completely to 5 within 1 h at 22 °C, as determined by TLC on Eastman cellulose in systems A and B with a 6% limit of detection of 4. Such behavior is consistent with the known tendency of a succinimide in alkali to form a succinamic acid (12). In 0.1 M sodium phosphate buffer (pH 8) at 22 and 37 °C, 4 formed only 3 and 12% 5, respectively, after 6 days.…”

A copper-catalyzed four-component reaction of arylcyclopropanes, nitriles, carboxylic acids and N-fluorobenzenesulfonimide: facile synthesis of imide derivatives

“… 9 Therefore, their synthesis has evolved into one of the important topics in modern synthesis, resulting in numerous methods, including condensation of amides and carboxylic acid derivatives (such as carboxylic acids, carboxylic acid salts, acyl chlorides, esters, etc. ), 10 the oxidation of N , N -dialkyl amides or N -alkyl amides, 11 the Ritter-type reaction of nitriles with anhydrides or carboxylic acids, 12 oxidative ring-opening of oxazole or imidazole derivatives, 13 and hydroamidocarbonylation of 1,3-dienes. 14 Recently, an electrochemical four-component 1,2-alkyloxylimidation of alkenes has been successfully established for the synthesis of imides.…”

X-Ray and Photoacoustic Studies on Zircaloy-2

“…Nowadays photoacoustic technique is also considered as very powerful NDT tool to study the thermal properties and the surface defects. In 1970, Wheeler [1] reported results of thermal diffusivity in Zircaloy-2 using modulated electron beam technique as constant in the temperature range from 550 to 925K, but varied with thickness of the sample. Walter et al [2] studied effects of sample orientation and thickness on thermal diffusivity of zircaloy-2 plate.…”