Abstract:Bei der Einwirkung unsymmetrisch substituierter Diaryldiazomethane auf o-Chinone und cyclische 1,2,3-Tricarbonylverbindungen entstehen nach Schema (2)
“…Schönberg et al continued their investigations of the reaction of diaryldiazomethanes with tricarbonyls. Both phenalenetrione hydrate ( 17b ) and quinisatin ( 18 , R = H) reacted with phenyl-( p -nitrophenyl)diazomethane to give dioxolanes 170 and 171 in high yields.…”
Section: Reactions With Diaryldiazomethanes (Scheme )mentioning
“…Schönberg et al continued their investigations of the reaction of diaryldiazomethanes with tricarbonyls. Both phenalenetrione hydrate ( 17b ) and quinisatin ( 18 , R = H) reacted with phenyl-( p -nitrophenyl)diazomethane to give dioxolanes 170 and 171 in high yields.…”
Section: Reactions With Diaryldiazomethanes (Scheme )mentioning
Die Umsetzung der unsymmetrisch substituierten Diaryldiazomethane (III) mit den 1,2,3‐Triketonen (II) bzw. (IV) verläuft exotherm zu den Dioxolen (I) bzw. (V).
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