63020-59-7Relevant academic research and scientific papers
Photocyclization of o-Halostilbenes
Olsen, Robert J.,Pruett, Stephen R.
, p. 5457 - 5460 (2007/10/02)
The photocyclization reactions of several ortho-halogenated stilbene derivatives were examined under both oxidative conditions (iodine/cyclohexane) and basic conditions (sodium methoxide/methanol).The major products were those anticipated from photodehydrogenation and photodehydrohalogenation, respectively.In some cases photodebromination of the product occurred.Some regiochemical control in phenanthrene synthesis can be achieved as is illustrated by a synthesis of dehydroorchinol acetate.
Oxygen Sensitization of Electron Capture Response to Isomers of Polycyclic Aromatic Amines and Hydroxides
Campbell, J. A.,Grimsrud, E. P.,Hageman, L. R.
, p. 1335 - 1340 (2007/10/02)
The use of the oxygen-sensitized constant-current electron capture detector (ECD) with gas chromatography for analyte identification is extended by examining the responses of numerous polycyclic aromatic amines and hydroxides where an appropriate EC-enhancing chemical tag has been attached to the amino group or the hydroxy group has been methylated.For the majority of isomeric groups examined, measured response enhancements of the derivatives are sufficiently dependent on structural differences as to provide an additional means by which substitution isomers can be differentiated.The ion chemistry responsible for the EC and oxygen-sensitized responses also has been examined by the use of an atmospheric pressure ionization mass spectrometer (APIMS).
