106775-99-9Relevant academic research and scientific papers
Lipophilic indole mediated chemoselective α-monobromination of 1,3-dicarbonyl compounds
Wong, Jonathan,Ke, Zhihai,Yeung, Ying-Yeung
, (2020)
A mild and efficient mono-selective bromination of 1,3-dicarbonyl compounds has been developed using lipophilic indole catalysts. Inexpensive and commercially available N-bromosuccinimide (NBS) was used as the brominating reagent. The selectivity was further enhanced when using stoichiometric amount of 3-bromoindole species. Mechanistic studies reveal that the indole catalyst has dual functions in the mono-bromination process.
Methanofullerene Synthesis via Photogenerated Fullerene Radical Anion Intermediates
Ito, Takatoshi,Iwai, Toshiyuki,Matsumoto, Fukashi,Sumino, Shuhei
, p. 8500 - 8507 (2021)
This work describes the synthesis of PCBM ([6,6]-phenyl-C61-butyric acid methyl ester) derivatives and other methanofullerene derivatives via generation of fullerene radical anions under photoirradiation and controlled by photoswitching, without preparation, a strong reducing agent, or precise control of the reaction conditions.
Preparation method of high-purity 3-methylquinoxaline-2-carboxylic acid
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Paragraph 0075-0077, (2018/09/12)
The invention discloses a preparation method of high-purity 3-methylquinoxaline-2-carboxylic acid. The preparation method comprises the following steps: enabling a compound shown as a formula III to react with acetate to obtain a compound shown as a formula II; enabling the compound shown as the formula II to react with o-phenylenediamine under an acidic condition to prepare a compound shows as aformula I; then, preparing the 3-methylquinoxaline-2-carboxylic acid from the compound shown as the formula I. The preparation method has the advantages of short process route, easiness and convenience in operation, mild conditions, readily-available raw materials, and higher yield and purity of the obtained product. As proved by results of qualitative and quantitative analysis performed on the product by the analysis measures of magnetic resonance imaging, high performance liquid chromatography, gas chromatography and the like, the moisture and solvent residue content in the product are extremely low, and a sample has high uniformity and storage stability, and meets the requirement as a standard product. The formulas I, II and III are shown in the description.
α-bromination of 1,3-dicarbonyl compounds using Dess-Martin periodinane (DMP) and tetraethylammonium bromide (TEAB)
Salgaonkar, Paresh D.,Shukla, Vidyanand G.,Akamanchi, Krishnacharya G.
, p. 275 - 280 (2007/10/03)
A mild and expeditious method for α-bromination of 1,3-dicarbonyl compounds using Dess-Martin periodinane and tetraethylammonium bromide is described. Copyright Taylor & Francis Group, LLC.
