Intermolecular alkynyl-ligand migration from aryl-palladium(II) to -platinum(II) complexes with and without a CuI catalyst. Reversible transfer of the alkynyl group between copper(I) and palladium(II) complexes
Abstract
Alkynyl-ligand transfer from [PdR(C![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CPh)L
2
]
(R = C
6
H
4
Me-p,
L = PEt
3
) to [PtR′(I)L
2
]
(R′ = C
6
H
4
OMe-p), to
give [PdR(I)L
2
] and
[PtR′(CCPh)L
2
], has been enhanced to a
large extent by addition of CuI, indicating reversible ligand transfer
between Pd
II
and Cu
I
complexes.
CPh)L
2
]
(R = C
6
H
4
Me-p,
L = PEt
3
) to [PtR′(I)L
2
]
(R′ = C
6
H
4
OMe-p), to
give [PdR(I)L
2
] and
[PtR′(CCPh)L
2
], has been enhanced to a
large extent by addition of CuI, indicating reversible ligand transfer
between Pd
II
and Cu
I
complexes.
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