Zur elektrophilen Substitution des Benzocyclobutens

6533b874fe1ef96bd12d605d

RESEARCH PRODUCT

Zur elektrophilen Substitution des Benzocyclobutens

Hans‐georg Schmelzer Leopold Horner Betty Thompson

subject

Inorganic Chemistry Chemistry Stereochemistry

description

Die Nitrogruppe tritt in 4- und 3-Stellung des Benzocyclobutens ein. Im letztgenannten Fall offnet sich der Vierring zwischen 1, 7. Eine Ringsprengung an der gleichen Stelle wird bei-der Einwirkung von Salzsaure auf 4-Acetamino-benzo-cyclobuten beobachtet. Ausgehend vom 4-Nitro-benzocyclobuten wurde uber die Amino- und Hydroxyverbindung hinweg mit Fremy-Salz Benzocyclobuten-o-chinon-(3.4) dargestellt. Es werden einige Reaktionen mitgeteilt, die mit diesem Strukturvorschlag in Einklang stehen. Zur Erklarung des unsymmetrischen Spaltungsverlaufes wird die Elektronenaffinitat des Aromaten im Ubergangszustand verantwortlich gemacht.

year	journal	country	edition	language
1960-08-01	Chemische Berichte

https://doi.org/10.1002/cber.19600930813

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