Organic acids from w heat ( Triticum aestivum), rye (Secale cereale), and barley (Hordeum vulgare, var. “G erbel” and “ Igri” ) were analysed by gas c h ro m a to g ra p h y -m ass spectrom etry. Two carboxylic acid fractions were obtained by chrom atography on Sephadex LH 20: frac­ tion A contained m ainly aliphatic acids, fraction B contained m ainly arom atic acids. The identified com pounds...

The carbon atom of a carboxyl group has a high oxidation state. It is not surprising, therefore, that many of the chemical reactions used for their preparation are oxidations. Such reactions have been discussed in previous sections of this text, and the following diagram summarizes most of these. To review the previous discussion of any of these reaction classes simply click on the number (1 to...

A silver-based catalyst system has been discovered that effectively promotes the protodecarboxylation of various carboxylic acids at temperatures of 80-120 degrees C--more than 50 degrees C below those of the best known copper catalysts.

The amphiphilic nature of simple n -alkyl carboxylic acids is found to induce nanoscopic heterogeneity in their structure. Our joint SAXS and computational investigation clarified the very origin this uncommon behaviour.