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Multiple deprotonation of primary aromatic diamines by LiAlH4.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 2015, Vol. 44 Issue 9, p4141-4147, 7p
- Publication Year :
- 2015
-
Abstract
- Reaction of LiAlH<subscript>4</subscript> with 1,2-phenylenediamine (1H<subscript>4</subscript>) in THF results in formation of the metallocyclic amido-/imido complex [{Al(1H<subscript>2</subscript>)}<subscript>2</subscript>{Al(1H)<subscript>2</subscript>}<subscript>2</subscript>][Li(THF)<subscript>2</subscript>]<subscript>4</subscript> (3), while in the presence of various Lewis base ligands 1,8-diaminonaphthalene (2H<subscript>4</subscript>) gives the amido-(‘ate’) complexes [Al(2H<subscript>2</subscript>)<subscript>2</subscript>]<superscript>−</superscript>[Li(LL′)]<superscript>+</superscript> [L = THF, L′ = PMDETA (N,N,N′,N′,N′′-pentamethyldiethylenetriamine) (4); L = L′ = TMEDA (N,N,N′,N′-tetramethylethylenediamine) (5)]. The latter complexes provide evidence of intermediates in the proposed reaction pathway for formation of the cyclic framework of the tetraanion [{Al(1H<subscript>2</subscript>)}<subscript>2</subscript>{Al(1H)<subscript>2</subscript>}<subscript>2</subscript>]<superscript>4−</superscript> of 3. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 44
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 101075183
- Full Text :
- https://doi.org/10.1039/c4dt03802a