27899-21-4Relevant academic research and scientific papers
Unprecedented formation of stable ketene-N,O-acetals and their rearrangement under basic conditions
Breuning, Matthias,H?user, Tobias
, p. 934 - 940 (2007)
Treatment of 2,4-disubstituted glutaryl dichlorides with benzimidic acid ethyl ester hydrochloride in the presence of triethylamine did not give the expected bis(acylbenzimidates), but delivered O-acyl-N-ethoxybenzylidene-ketene-N,O-acetals in good to exc
Synthesis of Dicarboxylic Acids from Aqueous Solutions of Diols with Hydrogen Evolution Catalyzed by an Iridium Complex
Fujita, Ken-ichi,Toyooka, Genki
, (2020/07/13)
A catalytic system for the synthesis of dicarboxylic acids from aqueous solutions of diols accompanied by the evolution of hydrogen was developed. An iridium complex bearing a functional bipyridonate ligand with N,N-dimethylamino substituents exhibited a high catalytic performance for this type of dehydrogenative reaction. For example, adipic acid was synthesized from an aqueous solution of 1,6-hexanediol in 97 % yield accompanied by the evolution of four equivalents of hydrogen by the present catalytic system. It should be noted that the simultaneous production of industrially important dicarboxylic acids and hydrogen, which is useful as an energy carrier, was achieved. In addition, the selective dehydrogenative oxidation of vicinal diols to give α-hydroxycarboxylic acids was also accomplished.
DIBASIC ACID DIESTER
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Page 4, (2008/06/13)
The present invention provides dibasic acid diesters, which are suitable for use in lubricating base oils, etc. and excellent in hydrolysis resistance, etc., represented by general formula (I): (wherein R2 and R3, which may be the same or different, each represent lower alkyl; and R1 and R4, which may be the same or different, each represent alkyl having 7 or more carbon atoms).
OILY INGREDIENT FOR COSMETIC PREPARATION AND COSMETIC PREPARATION
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Page/Page column 7-8, (2008/06/13)
The present invention provides oils for cosmetics comprising a dibasic acid diester represented by general formula (I) (wherein R1, R2, R3 and R4, which are the same or different, each represent lower alkyl) and excellent in solubility of a long-wave ultraviolet light absorber or the like, and so forth.
