Reactions of aliphatic diazo compounds: IV. Reaction of diphenyldiazomethane with substituted imides of maleic and itaconic acids
Diphenyldiazomethane regioselectively adds to 2-R-substituted maleimides to yield 1-pyrazoline derivatives, 1-R-7-aryl-6,8-dioxo-4,4-diphenyl-2,3,7-triazabicyclo[3.3.0]oct-2-enes that on heating liberate nitrogen to afford substituted 3-azabicyclo[3.1.0]h
Molchanov,Diev,Kostikov
p. 259 - 263
(2007/10/03)
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