85 Pyridine not only traps the liberated hydrogen chloride but takes part in the mechanism of formation of the acid anhydride, allowing milder conditions than in its absence. Mostly simple aliphatic carboxylic acids have been converted to their anhydrides by this method. The just described processes...
After activating the polypeptide at the α-carboxyl group with acetic anhydride, the activated polypeptide is reacted with thiocyanic acid (formed from ammonium thiocyanate with an acid) and the resulting thiohydantoin is cleaved with a base to give the thiohydantoin of the C-terminal amino acid...
maleic acid maleic anhydride See More Nearby Entries Cite this Entry Style “Maleic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/maleic%20acid. Accessed 9 Feb. 2025. Copy Citation Share...
(Fig.2b), which indicated that the structural confirmation of FAS was necessary for the HMGylation event to take place. This is not what we would expect to find from a mechanism that relies on the formation of an anhydride, because the reactivity that drives the reaction is found on the ...
使用氨基酸n-羧酸酐合成二酰胺基胶凝剂的方法 Carboxylic anhydride synthesis using an amino acid n- diamide based gelling agent approach本发明涉及一种合成根据式I的化合物的方法,其包括以下步骤:a)使根据式II的N羧酸酐和根据式III的N羧酸酐与根据式IV的二胺进行反应,以及b)向该反应添加酸以调节反应的pH值...
EDC/NHS activation mechanism of polymethacrylic acid: Anhydride versus NHS-ester. RSC Adv. 2015, 5, 69939–69947. [Google Scholar] [CrossRef] Palumbo, F.S.; Fiorica, C.; Di Stefano, M.; Pitarresi, G.; Gulino, A.; Agnello, S.; Giammona, G. In situ forming hydrogels of ...
Cellulose acetate, which is used in textiles and photographic film, is produced by reacting cellulose with acetic acid and acetic anhydride in the presence of sulfuric acid. Other esters of acetic acid, such as ethyl acetate and propyl acetate, are used in a variety of applications. ...
noun suc·cin·ic acid(ˌ)sək-ˌsin-ik- :a crystalline dicarboxylic acid C4H6O4that is found widely in nature, that is formed in the Krebs cycle and in various fermentation processes, and that is used chiefly as an intermediate in synthesis (as of pharmaceuticals and synthet...
구연산 일수화물; くえん酸水和物; Acide citrique monohydrate; Citronensäure Monohydrat; ácido cítrico monohydrate; 1,1,3-Propanetricarboxylic acid, 1-hydroxy-, hydrate (1:1); 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1); 1,2,3-Propanetricarboxylic acid, 2...
produced as an intermediate in the synthesis of 1,4-butanediol. Worldwide, the production capacity of maleic anhydride in 2007 was about 1807000 tons, with about 3% of this used to produce fumaric acid (90000tona−1). Current total production capacity of fumaric acid in the US is ∼50...