Complete assignment of NMR data of 22 phenyl-1<i>H</i>
-pyrazoles' derivatives
作者:Aline Lima de Oliveira、Carlos Henrique Alves de Oliveira、Laura Maia Mairink、Francine Pazini、Ricardo Menegatti、Luciano Morais Lião
DOI:10.1002/mrc.2773
日期:2011.8
Completeassignment of 1H and 13C NMR chemical shifts and J(1H/1H and 1H/19F) coupling constants for 22 1‐phenyl‐1H‐pyrazoles' derivates were performed using the concerted application of 1H 1D and 1H, 13C 2D gs‐HSQC and gs‐HMBC experiments. All 1‐phenyl‐1H‐pyrazoles' derivatives were synthesized as described by Finar and co‐workers. The formylated 1‐phenyl‐1H‐pyrazoles' derivatives were performed under
Chemoselective and Regiospecific Formylation of 1-Phenyl-1<i>H</i>-pyrazoles Through the Duff Reaction
作者:C. H. A. de Oliveira、L. M. Mairink、F. Pazini、L. M. Lião、A. L. de Oliveira、C. Viegas、V. de Oliveira、L. C. Cunha、F. G. F. Oliveira、J. L. Paz、M. N. Eberlin、Ricardo Menegatti
DOI:10.1080/00397911.2012.657764
日期:2013.6.18
The synthesis of formylated 1-phenyl-1H-pyrazole derivatives under the Duff reaction conditions is reported. Our results indicate that 1-phenyl-1H-pyrazole systems containing electron-withdrawing and electron-donating substituents at the phenyl moiety react under the Duff reaction conditions to furnish formylated derivatives in good yields.