NMR determination of the structure and of the conformation of dimethyl 2-(2',2'-dicarbomethoxyethyl)cyclobutane-1,1-dicarboxylate and of Dimethyl 3-dicarbomethoxymethylcyclopentane1,1-dicarboxylate

Add time:07/22/2019    Source:sciencedirect.com

The 250 MHz proton spectra of the title compounds were recorded and analyzed in terms of chemical shifts and coupling constants. The spectral parameters suffice to uniquely determine the structure of the two compounds and provide valuable information about the conformations of their most stable conformational isomers.

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