Platinum promoted insertion of an alkyne into a metal-hydrogen bond

Richard D. Adams; Burjor Captain; Lei Zhu

doi:10.1021/ja0657152

Platinum promoted insertion of an alkyne into a metal-hydrogen bond

Richard D. Adams, Burjor Captain, Lei Zhu

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40 Scopus citations

Abstract

HOs(CO)₄SnPh₃, 1 reacts with PhC₂H in the presence to Pt(PBu^t₃)₂ to yield the alkyne insertion product PtOs(CO)₄(SnPh₃)(PBu^t₃)[μ-HC₂(H)Ph], 2 containing a Pt(PBu^t₃)(CO) group coordinated to the osmium atom and the alkenyl ligand. In the absence of PhC₂H, 1 reacts with Pt(PBu^t₃)₂ to form a Pt(PBu^t₃) adduct, PtOs(CO)₄(SnPh₃)(PBu^t₃)(μ-H), 3 at the Os-H bond. This adduct is readily transformed to 2 upon reaction with PhC₂H. In the absence of the Pt(PBu^t₃) promoter, PhC₂H does not react with 1.

Original language	English
Pages (from-to)	13672-13673
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	42
DOIs	https://doi.org/10.1021/ja0657152
State	Published - Oct 25 2006
Externally published	Yes

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Adams, R. D., Captain, B., & Zhu, L. (2006). Platinum promoted insertion of an alkyne into a metal-hydrogen bond. Journal of the American Chemical Society, 128(42), 13672-13673. https://doi.org/10.1021/ja0657152

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title = "Platinum promoted insertion of an alkyne into a metal-hydrogen bond",

abstract = "HOs(CO)4SnPh3, 1 reacts with PhC2H in the presence to Pt(PBut3)2 to yield the alkyne insertion product PtOs(CO)4(SnPh3)(PBut3)[μ-HC2(H)Ph], 2 containing a Pt(PBut3)(CO) group coordinated to the osmium atom and the alkenyl ligand. In the absence of PhC2H, 1 reacts with Pt(PBut3)2 to form a Pt(PBut3) adduct, PtOs(CO)4(SnPh3)(PBut3)(μ-H), 3 at the Os-H bond. This adduct is readily transformed to 2 upon reaction with PhC2H. In the absence of the Pt(PBut3) promoter, PhC2H does not react with 1.",

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N2 - HOs(CO)4SnPh3, 1 reacts with PhC2H in the presence to Pt(PBut3)2 to yield the alkyne insertion product PtOs(CO)4(SnPh3)(PBut3)[μ-HC2(H)Ph], 2 containing a Pt(PBut3)(CO) group coordinated to the osmium atom and the alkenyl ligand. In the absence of PhC2H, 1 reacts with Pt(PBut3)2 to form a Pt(PBut3) adduct, PtOs(CO)4(SnPh3)(PBut3)(μ-H), 3 at the Os-H bond. This adduct is readily transformed to 2 upon reaction with PhC2H. In the absence of the Pt(PBut3) promoter, PhC2H does not react with 1.

AB - HOs(CO)4SnPh3, 1 reacts with PhC2H in the presence to Pt(PBut3)2 to yield the alkyne insertion product PtOs(CO)4(SnPh3)(PBut3)[μ-HC2(H)Ph], 2 containing a Pt(PBut3)(CO) group coordinated to the osmium atom and the alkenyl ligand. In the absence of PhC2H, 1 reacts with Pt(PBut3)2 to form a Pt(PBut3) adduct, PtOs(CO)4(SnPh3)(PBut3)(μ-H), 3 at the Os-H bond. This adduct is readily transformed to 2 upon reaction with PhC2H. In the absence of the Pt(PBut3) promoter, PhC2H does not react with 1.

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10.1021/ja0657152