Up to now there has been no agreement in the literature concerning the mechanism of this ketonization reaction. In the case of acetic acid, it appears that the ketone can be formed via two different routes. On oxides with a low lattice energy, bulk acetates are formed, decomposition of ...
5. Initial electrophilic activation of a carboxylic acid with triflic anhydride leads to the formation of a highly electrophilic triflate, which is prone to attack by a (hetero)arene to furnish a ketone A. This intermediate is reduced through a single electron transfer process to afford a ketyl...
CAS号[733741-14-5]化源网提供[TRANS-2-(2,4-DIMETHYLBENZOYL)CYCLOPENTANE-1-CARBOXYLIC ACID]MSDS、说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。
We posited that a carboxylic acid could be directly used as a latent electrophile (C-terminus) rather than a nucleophile (O-terminus) in cross-coupling. This could simplify and upgrade ketone synthesis from carboxylic acids and organic halides13. Very recently, our group and Doyle et al. ...
Diazomethane methylates carboxylic acids because carboxylic acids readily protonate it, giving an extremely unstable diazonium cation. This compound is desperate to lose N2and so it does with the N2being substituted by the carboxylate anion. The carboxylate anion is in exactly the right position to ...
caprylic acid───[有化]辛酸 双语使用场景 Lactic acid: Carboxylic acid found in certain plant juices, in blood and muscle, and in soil.───乳酸: 在某些植物的汁液 、 血液和肌肉里以及土壤里发现的一种羧酸. esterification mechanism of unsaturatedcarboxylic acidwas analyzed.───分析了不饱和羧...
ketone, acetone, thereby decreasing the selectivity to the cross-ketone. Afteralkaline treatment, both the anatase form of titania and monoclinic form of zirconia increase the isobutyric acid participation as the carbonyl component. Acetic acid remains as the preferred enolic component with all treated...
The pyrrolidinecarboxylic functionalized ionic liquid, 1-butyl-3-methylimidazolium-(S)-2-pyrrolidinecarboxylic acid salt ([bmim][Pro]), was prepared using an improved procedure. α,β-Unsaturated carbonyl compounds were selectively synthesized and high yields (88%–97%) were obtained at room temperat...
ESTIMATION OF CARBOXYL, ALDEHYDE, AND KETONE GROUPS IN HYPOCHLOROUS ACID OXYSTARCHES Under identical conditions, corn starch amylose was more readily oxidized than the amylopectin by chromium trioxide dissolved in acetic acid 鈥 acetic anhydride, which was a nonswelling system. These differences in rate...
Dual activity of electrocatalytic activated CO2 toward pyridine for synthesis of isonicotinic acid: an EC′C′C mechanism. Electrochem. Commun. 51, 69–71 (2015). Article CAS Google Scholar Zhao, Z. et al. Site-selective electrochemical C–H carboxylation of arenes with CO2. Angew. Chem....