Commercial solid-phase extraction columns packed with a stationary phase with bonded benzenesulfonic acid groups are readily converted to the silver ion form and can then be used for silver ion chromatography of lipids. To illustrate the utility of such procedures, methyl ester derivatives of fatty acids with zero to six double bonds were separated from each other by a simple stepwise elution s...

Replacing the guanidinium group in arginine (1) by a guanidiniocarbonyl pyrrole moiety provides a new class of artificial amino acids (2), that can be used as building blocks in standard solid phase peptide synthesis.

The synthesis of enantiopure N-benzylidene nitrones of N-hydroxy-alpha-amino acids and their incorporation using standard Fmoc-based peptide chemistry into solid-supported peptide chains is described. Deprotection and resin cleavage affords N-terminal peptide hydroxylamines, which are the key substrates for chemoselective ligations with C-terminal peptide alpha-ketoacids. This general route is ...

Terahertz (THz) absorption spectra of the similarly structured amino acids L-serine and L-cysteine in the solid phase at 77 and 298 K are reported and compared to isolated molecule and solid-state infrared vibrational spectral calculations using empirical force field and density functional theory. These comparisons suggest that many higher frequency internal modes can readily be assigned but lo...

Transition-metal complexes containing amino acids encapsulated within solid supports generate isolated active centres that function as effective selective oxidation catalysts using benign oxidants such as air and display high turnovers and selectivity in industrially significant oxidation reactions.

For the first time, ball milling is used in functionalization of silsesquioxanes. The solid-state nucleophilic addition aminopropylisobutyl POSS to cyclic anhydrides leads silsesquioxane amic acids virtually quantitative yields without use a solvent. reactions are easily scalable and can be adopted multigram quantities.