2-(2-Fluoro-4-nitroanilinoethyl)benzaldehyde and N-(2-fluoro-4-nitrophenyl)-1-methoxy-1,2,3,4-tetrahydroisoquinoline

2-(2-Fluoro-4-nitroanilinoethyl)benzaldehyde, C15H13 FN2O3, exists as the aldehyde form with essentially planar and parallel benzaldehyde and nitroaniline fragments, which are Linked through an ethylene bridge joining the aniline N atom and an ortho-C atom of the benzaldehyde fragment. N-(2-Fluoro-4-nitrophenyl)-1-methoxy-1,2,3,4-tetrahydroisoquinoline, C16H15FN2O3, obtained as a methanolysis product on attempted recrystallization of 2-(2-fluoro-4-nitroaniIinoethyl)benzaldehyde from methanol solution, consists of essentially planar nitrobenzene and non-planar tetrahydroquinoline fragments, which are Linked directly through the para-C atom of the former and the endocyclic N atom of the latter.