62909-66-4Relevant academic research and scientific papers
Reductive carbonylation of aryl halides employing a two-chamber reactor: A protocol for the synthesis of aryl aldehydes including 13C- and D-isotope labeling
Korsager, Signe,Taaning, Rolf H.,Lindhardt, Anders T.,Skrydstrup, Troels
, p. 6112 - 6120 (2013/07/26)
A protocol has been developed for conducting the palladium-catalyzed reductive carbonylation of aryl iodides and bromides using 9-methylfluorene-9- carbonyl chloride (COgen) as a source of externally delivered carbon monoxide in a sealed two-chamber system (COware), and potassium formate as the in situ hydride source. The method is tolerant to a wide number of functional groups positioned on the aromatic ring, and it can be exploited for the isotope labeling of the aldehyde group. Hence, reductive carbonylations run with 13COgen provide a facile access to 13C-labeled aromatic aldehydes, whereas with DCO2K, the aldehyde is specifically labeled with deuterium. Two examples of double isotopic labeling are also demonstrated. Finally, the method was applied to the specific carbon-13 labeling of the β-amyloid binding compound, florbetaben.
Heteroarylethanol-pyridylalkylamines for controlling animal growth
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, (2008/06/13)
A compound for promoting livestock production and for controlling obesity in humans and animals, of the formula STR1 in which A represents =CH-- or =N--, R0 represents hydrogen or methyl, R1 and R3 each independently represents hydrogen, hydroxyl, halogen, cyano, alkyl, halogenoalkyl, hydroxyalkyl, alkoxycarbonyl, aminocarbonyl, mono- and dialkylaminocarbonyl, alkoxy, halogenoalkoxy, halogenoalkylthio, NHSO2 -alkyl, R2 represents hydrogen, hydroxyl, alkoxy or the radical --NR5 R6, R4 represents hydrogen, C1 -C10 -alkyl which is optionally substituted by hydroxyl, halogen, alkoxy, acyloxy or the radical --NH7 R8, or represents the radical COR9 or the radical --O--Z--R10, Z represents C1 -C10 -alkylene, -alkenylene or alkynylene, R5 represents hydrogen or alkyl, R6 represents hydrogen, alkyl, halogenoalkyl or acyl, or R5 and R6 together with the adjoining N atom form a saturated or unsaturated heterocyclic 4-, 5- or 6-membered ring, R7 and R8 each independently represents hydrogen, optionally substituted alkyl, optionally substituted aryl, R9 represents hydroxyl, alkoxy or the radical --NR7 R8, R10 represents hydroxyl, alkoxy, acyloxy, optionally substituted aryloxy or aralkyloxy, with the substituent R4 and the alkylamino group in the pyridyl ring of the formula I being in the p position with respect to one another, or a physiologically tolerated salt thereof, or, if A represents nitrogen, optionally the N-oxide thereof.
