Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The dihydrophenanthridinium salts (I) undergo the Stevens rearrangement selectively on treatment with -butyl-lithium, forming the 5,6-disubstituted-5,6-dihydrophenanthridines (II) and allowing migratory aptitudes to be assessed. ... Satisfactory analytical and spectroscopic data ...
