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Multiple deprotonation of primary aromatic diamines by LiAlH4Electronic supplementary information (ESI) available: Crystal and NMR data for compounds 3-5. CCDC 1038241-1038243. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4dt03802a
Reaction of LiAlH 4 with 1,2-phenylenediamine ( 1 H 4 ) in THF results in formation of the metallocyclic amido-/imido complex [{Al( 1 H 2 )} 2 {Al( 1 H) 2 } 2 ][Li(THF) 2 ] 4 ( 3 ), while in the presence of various Lewis base ligands 1,8-diaminonaphthalene ( 2 H 4 ) gives the amido-('ate')...
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| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Online Access: | Get full text |
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| Summary: | Reaction of LiAlH
4
with 1,2-phenylenediamine (
1
H
4
) in THF results in formation of the metallocyclic amido-/imido complex [{Al(
1
H
2
)}
2
{Al(
1
H)
2
}
2
][Li(THF)
2
]
4
(
3
), while in the presence of various Lewis base ligands 1,8-diaminonaphthalene (
2
H
4
) gives the amido-('ate') complexes [Al(
2
H
2
)
2
]
−
[Li(LL′)]
+
[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(
1
H
2
)}
2
{Al(
1
H)
2
}
2
]
4−
of
3
.
Reaction of LiAlH
4
with 1,2-phenylenediamine (
1
H
4
) in THF gives [{Al(
1
H
2
)}
2
{Al(
1
H)
2
}
2
][Li(THF)
2
]
4
, containing the largest aluminate of its type so far reported. |
|---|---|
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c4dt03802a |