期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 78, 期 12, 页码 6112-6120出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo400741t
关键词
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资金
- Danish National Research Foundation
- Danish Natural Science Research Council
- Carlsberg Foundation
- Lundbeck Foundation
- iNANO
- Aarhus University
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 (13)COgen provide a facile access to C-13-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 beta-amyloid binding compound, florbetaben.
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