ANOMALIES IN THE GAS-CHROMATOGRAPHIC BEHAVIOR OF SUBSTANCES FACILITATING A RING CONFORMATION THROUGH THEIR PROPYL GROUP

The applicability of precise gas chromatogaphic measurements has been demonstrated for the identification of very fine structural features of compounds. On the basis of the gas chromatographic behaviour of five classes of unsaturated hydrocarbons and four classes of compounds containing hetero-atoms, it is concluded that retention anomalies are to be expected for compounds with molecular structures that make it possible to form a ring conformation of the propyl group with the π-electron system of the remainder of the molecule and that this phenomenon is a common feature of the compounds with such structures. © 1979.