New discoveries in chemical research and development in 2021.In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. In an article, author is Dey, Sanjeev K., once mentioned the application of 67604-48-2, Name is 5,7-Dihydroxy-2-(4-hydroxyphenyl)chroman-4-one, molecular formula is C15H12O5, molecular weight is 272.2528, MDL number is MFCD00006844, category is pyrrolines. Now introduce a scientific discovery about this category, Computed Properties of https://www.ambeed.com/products/67604-48-2.html.
Amphiphilic dipyrrinones: methoxylated [6]-semirubins
Replacing the typical beta-alkyl substituents of [6]-semirubin and [6]-oxosemirubin, two intramolecularly hydrogen-bonded bilirubin analogs, with methoxy groups produces amphiphilic dipyrrinones. Synthesized from the respective 9H-dipyrrinones prepared by base-catalyzed condensation of 3,4-dimethoxy-pyrrolin-2-one with the appropriate pyrrole alpha-aldehyde, the 2,3-dimethoxy and 2,3,7,8-tetramethoxy analogs of [6]-semirubin are yellow-colored dipyrrinones that form intramolecularly hydrogen-bonded monomers in CDCl3, as deduced from H-1 NMR NH chemical shifts. They are monomeric in CHCl3, as determined by vapor pressure osmometry. In contrast, in the solid, X-ray crystallography reveals supramolecular ribbons of intermolecularly hydrogen-bonded (dipyrrinone to dipyrrinone and acid to acid) 2,3,7,8-tetramethoxy-[6]-semirubin. The latter is approximately 20 times more soluble in water than the parent [6]-semirubin with four beta-methyl groups. (C) 2009 Elsevier Ltd. All rights reserved.
The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic, their interactions with reaction intermediates. Interested yet? Read on for other articles about 67604-48-2. Computed Properties of https://www.ambeed.com/products/67604-48-2.html.
Reference:
Pyrroline – Wikipedia,
,1-Pyrroline | C4H7N – PubChem