In a previous3 investigation it was found that the catalytic hydrogenation of cis-and trans-l- cyclo-hexyl-2-(o-nitrophenyl)-3-benzoyl-ethylenimine led to the opening of the three-ring and closure of a sixring to produce 3-cyclohexylamino-2-phenylquino-line. A related reaction has now been found for the production of various 3-sec-amino-2-phenylquinolines from a,@-di-(sec-amino)-@-(2-nitrophenyl)-propiophenones. Using W-2 Raney nickel ...
