The successful separation of 2- and 3-methyl-substituted positional isomers of butanol, butyl acetate, and butanoic acid and its ethyl ester, is reported. These compounds are of interest in the study of wine flavour, however the separation of the 2- and 3-methyl isomers may present problems,...
The substrate selectivity of several microbial lipases has been examined in the esterification of the conjugated linoleic acid (CLA) isomers cis -9, trans -11-, cis -9, cis -11-, trans -9, trans -11- and trans -10, cis -12-octadecadienoic acid with n -butanol in n -hexane. Lipases...
On the other hand, second isomeric pair shows significant loss of t ‐butanol and loss of acetone for Boc‐NH‐δ‐Caa‐β‐Caa‐OCH 3 (18), whereas these are insignificant for its positional isomer Boc‐NH‐β‐Caa‐δ‐Caa‐OCH 3 (13). The tetra‐ and hexapeptide positional isomers ...
Reso- lution of triacylglycerol positional isomers by reversed-phase high-performance liquid chromatography. J. Sep. Sci. 27, 1033-1036.Momchilova, S.; Tsuji, K.; Itabashi, Y.; Nikolova-Damyanova, B.; Kuk- sis, A. Resolution of Triacylglycerol Positional Isomers by Reversed- Phase High-...
The structure and inclusion ability of eight types of salts prepared from a combination of four tartaric acid derivatives (dibenzoyl- and three positional isomers of ditoluoyl-l-tartaric acid) and two V-shaped dianilines were investigated. They afforded 1 : 1 or 2 : 1 stoichiometric ...
Scanning calorimetric studies of aqueous dispersions of bilayers made with cholesterol and a pair of positional isomers of 3-sn-phos- phatidylcholine. Biochim. Biophys. Acta 778, 305 - 310.Davi84] P. Davis and K. Keough. "Scanning calorimetric studies of aqueous dispersions of bilayers made ...