13C NMR study of substituted 10,10-diphenyl-9-phenanthrones. Structure determination and signal assignment using 2D NMR techniques
作者:R. Mynott、Maria J. Romão、B. J. Herold
DOI:10.1002/mrc.1260271205
日期:1989.12
The 13C NMR spectrum of 10,10-diphenyl-9-phenanthrone was assigned unambiguously using 2D 13C,1H shift correlated NMR spectra, optimized either for one-bond or long-range 13C1H couplings, and 2D RELAY NMR spectra. This information allowed the structures of a number of substituted 10,10-diphenyl-9-phenanthrones to be deduced from their 13C NMR spectra. The results provide an insight into the mechanism of the reaction of 9-fluorenone with chlorodiphenylmethyllithium.
利用针对单键或长程 13C1H 耦合进行优化的二维 13C、1H 移位相关 NMR 光谱以及二维 RELAY NMR 光谱,明确地分配了 10,10-二苯基-9-菲罗酮的 13C NMR 光谱。根据这些信息,可以从 13C NMR 光谱推断出一些取代的 10,10-二苯基-9-菲罗啉的结构。这些结果有助于深入了解 9-芴酮与二苯基甲基氯锂的反应机理。