Amide bond formation via C(sp<sup>3</sup>)–H bond functionalization and CO insertion
作者:Huizhen Liu、Gabor Laurenczy、Ning Yan、Paul J. Dyson
DOI:10.1039/c3cc47015f
日期:——
An efficient method for the synthesis of amides via Pd-catalyzed oxidative carbonylation of C(sp(3))-H bonds with CO and amines is described. The route efficiently provides substituted phenyl amides from alkanes.
Electronic properties of anticonvulsant amides. A C-13 nuclear magnetic resonance study of phenylacetanilides.
作者:CHISAKO YAMAGAMI、NARAO TAKAO、YOSHITO TAKEUCHI
DOI:10.1248/cpb.31.4172
日期:——
Some twenty phenylacetanilides with p-and m-substituents in the aniline ring were prepared and their C-13 nuclear magnetic resonance spectra were measured. Substituent chemical shifts (SCS) of the para-carbon atom were examined by means of dual substituent parameter (DSP) and DSP-nonlinear resonance (DSP-NLR) equations. Excellent correlations were obtained by DSP analyses. The results indicate that the-NHCOCH2Ph moiety is a weak electron donor. The chemical shift data and derived correlations are very similar to those obtained for substituted propionanilides.
The trifluoroacetic acid (TFA) mediated hydration of ynamides was developed, which is an efficient approach for the synthesis of N-monosubstituted amides. This convenient method is effective with a wide range of substrates under room temperature condition, and the products are obtained in high to excellent yields through an easy work-up process.