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An easy and convenient technique for the one-pot synthesis of novel compounds of hexahydroacridine-1,8(2 H ,5 H )-dione and octahydroacridin-10(1 H )-yl) thiourea derivatives has been developed by the reaction of the octahydro-1 H -xanthenes with hydroxylamine hydrochloride and thiosemicarbazide in ethylene glycol, which is a green solvent, under mild reaction conditions. IR,  1 H NMR,  13 C NMR spectrometry, and X-ray diffraction analysis were used to identify the structures of these compounds.

heterocyclic communications

A Facile and Catalyst-free Synthesis of Hexahydroacridine-1,8(2 H ,5 H  )-dione and Octahydroacridin-10(1 H  )-yl)thiourea Derivatives: Inter- and Intramolecular Aza-Michael addition