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Lithiumamide, -hydrazonide und -ketazide als Bausteine acyclischer, cyclischer und spirocyclischer Bor-, Phosphor- und Siliciumverbindungen sowie monomerer und dimerer Amino-imino-borene

Lithiumamide, -hydrazonides and -ketazides as components for acyclic, cyclic, and spirocyclic boron-, phosphorus, and silicon compounds and monomeric, and dimeric amino-imino-borens

by Martin Görth
Doctoral thesis
Date of Examination:2009-01-22
Date of issue:2009-02-09
Advisor:Prof. Dr. Uwe Klingebiel
Referee:Prof. Dr. Dietmar Stalke
Referee:Prof. Dr. Hans-Ulrich Krebs
Referee:Dr. Thomas Zeuch
crossref-logoPersistent Address: http://dx.doi.org/10.53846/goediss-2042

 

 

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Abstract

English

Flurorosilylhydrazones are obtained from the reaction of lithiated hydrazones with fluorosilanes. On subsequent reaction with tert-butyllithium, cyclization takes place, to give 1,2-diaza-3-sila-5-cyclopentenes; the cyclization is favoured by the nitrogen-substituent of the hydrazone.
Keywords: hydrazones; azines; silylhydrazones; amino-imino-borens

Other Languages

Obwohl Hydrazone und Azine in unterschiedlichen Industriezweigen eingesetzt werden, ist die Chemie ihrer Salze wenig untersucht. Bisher bekannte Reaktionen lithiierter Hydrazone mit Halogensilanen und -phosphanen führten bereits zu interessanten Resultaten, z. B. zu stabilen Radikalkationen der 1,2-Diaza-2-silycylopentene oder zur Synthese ungesättigter Phosphorverbindungen. Azine bilden mit Lithiumorganylen Monoanionen in 1- und Dianionen in 1,6- Position.
Schlagwörter: Hydrazone; Azine; Silylhydrazone; Amino-imino-borene
 

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