1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactionsCCDC 1531494-1531501. For crystallographic data in CIF or other electronic format see DOI: 10.1039/c7dt00471k
The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C 10 H 6 (NSiMePh 2 H) 2 and one or two equivalents of Mg n Bu 2 affords two complexes wi...
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| Main Authors | , , , , , |
|---|---|
| Format | Journal Article |
| Language | English |
| Published |
21.03.2017
|
| Online Access | Get full text |
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| Summary: | The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C
10
H
6
(NSiMePh
2
H)
2
and one or two equivalents of Mg
n
Bu
2
affords two complexes with differing coordination environments for the magnesium; the reaction between 1,8-C
10
H
6
(NSiMePh
2
H)
2
and Mg
n
Bu
2
in a 1 : 1 ratio affords 1,8-C
10
H
6
(NSiMePh
2
)
2
{Mg(THF)
2
} (
1
), which features a single magnesium centre bridging both ligand nitrogen donors, whilst treatment of 1,8-C
10
H
6
(NSiR
3
H)
2
(R
3
= MePh
2
,
i
Pr
3
) with two equivalents of Mg
n
Bu
2
affords the bimetallic complexes 1,8-C
10
H
6
(NSiR
3
)
2
{
n
BuMg(THF)}
2
(R
3
= MePh
2
2
, R
3
=
i
Pr
3
3
), which feature four-membered Mg
2
N
2
rings. Similarly, 1,8-C
10
H
6
(NSi
i
Pr
3
)
2
{MeMg(THF)}
2
(
4
) and 1,8-C
10
H
6
(NSiMePh
2
)
2
{ZnMe}
2
(
5
) are formed through reactions with the proligands and two equivalents of MMe
2
(M = Mg, Zn). The reaction between 1,8-C
10
H
6
(NSiMePh
2
H)
2
and two equivalents of MeMgX affords the bimetallic complexes 1,8-C
10
H
6
(NSiMePh
2
)
2
(XMgOEt
2
)
2
(X = Br
6
; X = I
7
). Very small amounts of [1,8-C
10
H
6
(NSiMePh
2
)
2
{IMg(OEt
2
)}]
2
(
8
), formed through the coupling of two diamidonaphthalene ligands at the 4-position with concomitant dearomatisation of one of the naphthyl arene rings, were also isolated from a solution of
7
.
Alkane elimination reactions afford magnesium and zinc 1,8-bis(triorganosilyl)diamidonaphthalene complexes, where the tuning of the reaction conditions and steric bulk allows manipulation of the coordination environment. |
|---|---|
| Bibliography: | CCDC 1531494-1531501 10.1039/c7dt00471k For crystallographic data in CIF or other electronic format see DOI |
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c7dt00471k |