Thermal rearrangement of spirans (14) and (31) yields the xanthones (16,34) and diphenylrnethane (15, 32), respectively. The structure for xanthone (16), isolated from thermolysis, has been established by reduction to xanthene (20) followed by reoxidation to give xanthone (16). Alternatively, methylation of the diphenylmethane (15) followed by heating with selenium dioxide also yields xant...

The reusable and easily separable nano-copper ferrite has been used to study its excellent catalytic behavior for thermolysis of modified nitrotriazolone (NTO), an insensitive energetic material act as oxidizer chemical propulsion systems.

New Cr–Fe–Ln complexes with ferrocenecarboxylate and triethanolamine ligands are obtained. Tb, Dy Ho SMMs, one has the anisotropy barrier of 75 K. Thermolysis leads to Cr 0.75 Fe 1.25 O 3 LnCr 0.25 phases.