60083-30-9Relevant academic research and scientific papers
Pyridine-Catalysed Desulfonylative Addition of β-Diketones to Arylazosulfones via Diaziridine Rearrangement
Ji, Xin,Meng, Ling-Guo,Xu, Hailong,Wang, Lei
supporting information, p. 1142 - 1146 (2020/12/31)
A pyridine-catalysed desulfonylative addition of β-diketones to arylazosulfones was developed to obtain diazenyl β-dicarbonyl compounds. The aryldiazenyl group was observed in the desired product from arylazosulfones, and this diazenylation reaction was achieved via a possible rearrangement process based on diaziridine ring cleavage. The scope of the protocol was investigated and a plausible mechanism was given. (Figure presented.).
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.
