Mitsuo Masumura

Reaction of pyridine N-imides with ylidenemalononitriles: formation of a novel intramolecular pyridinium salt

Abstract Pyridine N-imides react with ylidenemalononitriles to form a novel intramolecular pyridinium salt containing a dipole structure.

Syntheses of licoricone and its isomer

Synthese de la licoricone et de son isomere (dihydroxy-2,7 dimethoxy-4,6 isoprenyl-3 isoflavone) a partir de benzyloxy-2 dimethoxy-4,6 benzaldehyde par lintermediaire de la reaction du butene-3ol-2 avec la dibenzoyloxy-2,7 dimethoxy-4,6 isoflavone

Novel synthesis and rearrangement of 6-azabicyclo[3.1.0]hex-3-en-2-ones

Reaction of N-aminopyridinium iodides with cyclopentadienone derivatives gave the 6-azabicyclo[3.1.0]hex-3-en-2-ones (3) which rearranged to the hydroxypyridine derivatives (4) upon heating or irradiation.