- Photochemical Cyclisation of Phthalimide Mannich Bases
-
Ultraviolet irradiation of Mannich bases derived from phthalimide, formaldehyde, and a secondary amine leads to cyclised products containing a new imidazolidine ring.The reaction is much less efficient when the secondary amine has an aromatic group adjacent to the nitrogen atom.Exceptionally, the Mannich base derived from 3-pyrroline does not cyclise but undergoes an internal oxidation-reduction reaction to give a substituted pyrrole.
- Coyle, John D.,Newport, Graham L.
-
-
- 2-[(4-Phenyl-tetrahydropyridinyl)alkyl]-1H-isoindole-1,3(2H)-diones
-
Compounds having the formula SPC1 Wherein A is a straight or branched chain alkylene group; R1 is hydrogen, halogen, alkyl, alkoxy, alkylthio, nitro, amino, or cyano; and R2 is hydrogen, halogen, alkyl, alkoxy, trifluoromethyl, nitro
- -
-
-