60083-28-5Relevant academic research and scientific papers
Efficient synthesis of 3-aroylcinnolines from aryl methyl ketones
Al-Awadi, Nouria A,Elnagdi, Mohamed Hilmy,Ibrahim, Yehia A,Kaul, Kamini,Kumar, Ajith
, p. 1609 - 1614 (2007/10/03)
An efficient synthesis of 3-aroylcinnolines starting from the appropriate aryl methyl ketones is described. The latter were converted in two steps to the corresponding 3-oxo-3-aryl-2-arylhydrazonopropanals, which upon acid catalyzed cyclization in conc. s
PHOTOISOMERISATION D'ARYLHYDRAZONES-2 DE DICETONES-1,2 SUBSTITUEES EN 2. MECANISME D'ISOMERISATION THERMIQUE DE LA DOUBLE LIAISON C=N
Pichon, R.,Saint, J. Le,Courtot, P.
, p. 1517 - 1524 (2007/10/02)
A syn-anti photoisomerisation of the carbon-nitrogen double bond is responsible for the photochromic properties observed with 2-arylhydrazones of 2-substituted 1,2-diketones.We have determined the multiplicity of the excited state involved in the process and we have shown that, in the thermal back-reaction, syn-anti isomerisation takes place through rotation around the C=N bond rather than through inversion of the nitrogen atom.
