Journal of Spectroscopy

Journal of Spectroscopy / 2004 / Article

Open Access

Volume 18 |Article ID 451925 | 15 pages |

1H and 13C NMR spectroscopic studies of half-esters from monohydrolysis of dialkyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylates


The structures of the half-esters from the monohydrolysis of (exo,exo)-, (endo,endo)-, and (endo,exo)-dialkyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylates were determined by 1H and 13C NMR as well as 2D NMR spectra, and the complete spectral assignment has been made. After conversion of one of the carboalkoxy groups to a carboxyl group, different tendencies were observed for the differences in 1H and 13C NMR chemical shifts between half-esters and the corresponding diesters.

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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