1985
DOI: 10.1002/cber.19851181120
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1,3‐Anionische Cycloadditionen, XVIII. Erweiterung des Anwendungsbereichs 1,3‐Anionischer Cyclo‐additionen durch aktivierende Organoelementgruppen

Abstract: Die Organoelementgruppen PhS-, PhSe-, Ph,P -, Ph,As-, Ph,Ge-, Ph,(O)P -und Ph,(O)As -ermoglichen die Cycloaddition von 2-Azaallyllithium-Verbindungen an die EthenDoppelbindung, wahrend die Gruppen PhTe-, Ph,Sb-, Ph3Sn-und Ph3Pb-diesen Zweck nicht erfiillen. 1,3-Anionic Cycloadditions, XVIII Extension of the Scope of 1 ,S-Anionic Cycloadditions by Activating Organoelement GroupsThe organoelement groups PhS -, PhSe -, Ph2P -, Ph,As -, Ph,Ge -, Ph,(O)P -, and Ph,(O)As -make possible the cycloaddition of 2-azaally… Show more

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Cited by 11 publications
(3 citation statements)
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“…Two distinct types of substrates provided isolable products, one of which was alkynes. 35 Treatment of a benzene solution of (smif)Fe{N-(SiMe 3 ) 2 } (1) with 2 equiv of ditolyl-acetylene afforded a dark green solution containing a mixture of compounds that included hexatolylbenzene (∼15%). Crystallization from diethyl ether provided a red 3 + 2 cycloaddition product, (11, 19%) that was identified by X-ray crystallography.…”
Section: Resultsmentioning
confidence: 99%
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“…Two distinct types of substrates provided isolable products, one of which was alkynes. 35 Treatment of a benzene solution of (smif)Fe{N-(SiMe 3 ) 2 } (1) with 2 equiv of ditolyl-acetylene afforded a dark green solution containing a mixture of compounds that included hexatolylbenzene (∼15%). Crystallization from diethyl ether provided a red 3 + 2 cycloaddition product, (11, 19%) that was identified by X-ray crystallography.…”
Section: Resultsmentioning
confidence: 99%
“…Since the azaallyl anion functionality should behave as a nucleophile, 35 Na(smif) was treated with t BuNCO, resulting in a deep red solution from which Na( t BuNHCO-smif) was obtained as metallic green microcrystals in 91% yield (eq 9). As an alternative route to ( t BuNHCO-smif) 2 Fe (14a), the addition of 2 equiv of Na( t BuNHCO-smif) to FeBr 2 (THF) 2 in THF resulted in a dark red-orange solution, from which the complex was isolated in 61% yield as dark red crystals (eq 10).…”
Section: Resultsmentioning
confidence: 99%
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