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Review

Cycloaddition an verbindungen mit λ3σ2-phosphor- und λ3σ2-arsen-mehrfachbindungen

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Pages 203-251 | Received 19 Nov 1984, Published online: 28 Mar 2007
 

Abstract

In the course of the last 20 years the λ3σ2- and λ3σ2As-Chemistry has progressed rapidly. Compounds, containing λ3P- and σ3As-(p-p)π-bonds, considered before to be unstable have become the basis of a new and extremely interesting branch of chemistry. Cycloadditions to the P˭C and As˭C-bonds are developing rapidly at the present time. Many new types of compounds have been obtained and many rearrangements have been discovered, which are presented and discussed in this compilation.

Die Chemie der λ3σ2-Phosphor und λ3σ2-Arsen-Verbindungen befindet sich seit etwa 20 Jahren in stürmischer Entwicklung. Verbindungen dieser Elemente mit pπ-pπ-Mehrfachbindungen, die früher als unbeständig galten, können isoliert und untersucht werden. Zur Zeit stehen Cycloadditionen an die Mehrfachbindungen im Vordergrund des Interesses. Neue Verbindungstypen wurden erhalten und zahlreiche Umlagerungen und Folgereaktionen beobachtet, deren Besonderheiten in der vorliegenden übersicht behandelt werden.

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