Pyrazolinone Carbonyl Ylides: Novel Photochemistry of Oxiran and Diazo-compounds
A series of oxopyrazoline-4-spiro-oxirans and 4-diazo-3-methyl-1-phenyl-5-oxo-2-pyrazoline have been photolysed to generate reactive intermediates incorporating the pyrazolinone ring, which have been trapped with nucleophilic solvents and investigated by
Ege, Seyhan N.,Gess, E. Joseph,Thomas, Anthony,Umrigar, Pesi,Griffin, Gary W.,et al.
Reactive intermediates in the photochemistry of 4-diazo-2-pyrazolin-5-ones
Photolysis of 4-diazo-2-pyrazolin-5-ones in methanol gives a mixture of stereoisomeric methyl 3-aryl-(or alkyl-)azo-2-alkenoates.A study of the absorption spectra of the species generated upon steady-state photolyses in glasses at 77 K, in solution at 296
Umrigar, Pesi,Griffin, Gary W.,Ege, Seyhan N.,Adams, Alan D.,Das, Paritosh K.
p. 2456 - 2463
(2007/10/02)
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