Further Studies in the Reactions of Triethylaluminum with Bis-(diphenylphosphino) amines

Triethylaluminum reacts with bis(diphenylphosphino)-n-propylamine and bis(diphenylphosphino)-n-butylamine to form the 1:1 adducts in which the aluminum atom is pentacoordinate. Triethylaluminum does not react with other bis(diphenylphosphino)amines in which the third substituent on the nitrogen atom...

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Bibliographic Details
Published inCanadian journal of chemistry Vol. 51; no. 19; pp. 3187 - 3189
Main Authors Clemens, Donald F, Smith Jr, Robert B, Dickinson, John G
Format Journal Article
LanguageEnglish
Published Ottawa, Canada NRC Research Press 01.10.1973
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Summary:Triethylaluminum reacts with bis(diphenylphosphino)-n-propylamine and bis(diphenylphosphino)-n-butylamine to form the 1:1 adducts in which the aluminum atom is pentacoordinate. Triethylaluminum does not react with other bis(diphenylphosphino)amines in which the third substituent on the nitrogen atom is α-methylbenzyl, benzyl, or 1,1-dimethylamine. The formation of adducts from straight-chain hydrocarbons and the total lack of reactivity for the Lewis bases containing bulky groups leads to the postulation that steric hindrance prevents the free pair of electrons on the phosphorus atoms from being available to the triethylaluminum.
ISSN:0008-4042
1480-3291
DOI:10.1139/v73-476