Cycloaddition of aromatic imines to a ruthenium butatrienylidene complex: synthesis of 4-ethynylquinoline and 1-azabuta-1,3-diene complexes
Abstract
Reactions of aromatic imines with the putative
butatrienylidene–ruthenium cation
[Ru(C![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
CCCH
2
)(PPh
3
)
2
- (η-C
5
H
5
)]
+
gives complexes
containing either 4-ethynylquinoline or 1-azabuta-1,3-diene ligands; the
molecular structures of
[Ru(C![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CC
9
H
4
MeN)(PPh
3
)
2
(η-C
5
H
5
)] and
[Ru{CCC(CHCHPh)N(C
6
H
4
N
O
2
-3)}(PPh
3
)
2
(η-C
5
H
5
)] are reported.
CCCH
2
)(PPh
3
)
2
- (η-C
5
H
5
)]
+
gives complexes
containing either 4-ethynylquinoline or 1-azabuta-1,3-diene ligands; the
molecular structures of
[Ru(CCC
9
H
4
MeN)(PPh
3
)
2
(η-C
5
H
5
)] and
[Ru{CCC(CHCHPh)N(C
6
H
4
N
O
2
-3)}(PPh
3
)
2
(η-C
5
H
5
)] are reported.
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