The neutral and base-catalyzed hydrolysis of nine carboxylic acid esters was studied using a hybrid supermolecule-PCM approach including six explicit water molecules. The molecules studied included two linear esters, four β-lactones, two γ-lactones, and one δ-lactone: ethyl acetate and methyl fo...
In cases where the nonreactive carboxylic acid form of the dye is required, pHrodo carboxylic acid can be obtained by mild alkaline hydrolysis of the succinimidyl ester (e.g., 12-hour incubation in aqueous solution at pH 8 in the dark will yield >99.9% hydrolysis, higher pH will give a...
Hydrothermal carbonization of lignin in the presence of acrylic acid (LAHC-SOH) provided many more carboxylic groups than that in the absence of acrylic acid, allowing subsequent sulfonation to produce a highly active and stable catalyst for cellulose hydrolysis in the [BMIM]Cl-HO ...
room-temperatureionicliquids[J].JournalofMolecularCa talysisA Chemical 2007274(1/2) 208-211. @@[29] SWTLOSKIRP HOLBERYJD ROGERSRD.Ionicliq uidsarenotalwaysgreen hydrolysisof1-butyl-3-methylimi dazoliumhexafluorophosphate[J].GreenChem 20035(4) 361-363. @@[30]黄宝华,汪艳飞,张焜,等.吡咯烷酮...
Hydrolysis of some diaryl esters of di-(2-chloroethyl)amidophosphoric acid in acidic and alkaline media 来自 国家科技图书文献中心 喜欢 0 阅读量: 19 作者:II Kuz'Menko,LB Rapp 摘要: No Abstract available for this article.DOI: 10.1007/BF00771800 年份: 1970 ...
Here we report that degradation rates (intramolecular rearrangement and hydrolysis) for 9 drug glucuronide metabolites show an excellent correlation (r2 = 0.995) with the extents of drug covalent binding to albumin in vitro. Furthermore, this binding capacity is predictable based on chemical structure...
hydrolysis of cellulose or carbohydrates toward industrially essential chemicals. Sulfonic acid-modified graphene oxide was used to transform hexoses into levulinic acid41, for synthesizing benzimidazole42, or as an ion-exchange material for electrochemiluminescence analysis43. Sulfonic acid-functionalized ...
During the hydrolysis of TEOS or TMOS, a significant amount of alcohol is liberated, which may denature the incorporated protein molecules. This problem can be overcome by using aqueous precursors of silica such as sodium silicate, silicic acid, or glycerated silanes.41,42 This procedure mimics ...
Because of the acid-catalyzed mechanism of both hydrolysis of inulin and dehydration of fructose, these two processes can be integrated in one pot. Hu et al. [47] conducted the efficient one-pot reaction for the conversion of inulin into 5- HMF with ChCl:oxalic acid and ChCl:citric acid...
The donation of a proton is usually an intermediate step in any acid hydrolysis reaction. Acids are usually the chemical reagent used to donate protons in an aqueous solution. If the water could be the source of the [H+], then there would be fewer unwanted by-products (toxins) from the ...