A Silylyne Tungsten Complex Having an Eind Group on Silicon: Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones

Takashi Yoshimoto; Hisako Hashimoto; Naoki Hayakawa; Tsukasa Matsuo; Hiromi Tobita

doi:10.1021/acs.organomet.6b00670

A Silylyne Tungsten Complex Having an Eind Group on Silicon: Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones

Takashi Yoshimoto, Hisako Hashimoto, Naoki Hayakawa, Tsukasa Matsuo, Hiromi Tobita

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

A tungsten silylyne complex having a fused-ring group (Eind) on Si was synthesized from a hydrido hydrosilylene complex via stepwise abstraction of a proton and a hydride and was isolated as an eight-membered cyclic dimer bound through two isocarbonyl linkages. The IR and variable-temperature NMR analyses revealed that the dimer is in equilibrium with a monomeric silylyne complex in solution. The silylyne complex underwent [2 + 2] cycoaddition reactions with carbodiimide and diaryl ketones, and in the latter case the cycloaddition product further reacted with another molecule of ketone to give a complex formed through C-C and Si-C coupling.

Original language	English
Pages (from-to)	3444-3447
Number of pages	4
Journal	Organometallics
Volume	35
Issue number	20
DOIs	https://doi.org/10.1021/acs.organomet.6b00670
Publication status	Published - 2016 Oct 24

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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abstract = "A tungsten silylyne complex having a fused-ring group (Eind) on Si was synthesized from a hydrido hydrosilylene complex via stepwise abstraction of a proton and a hydride and was isolated as an eight-membered cyclic dimer bound through two isocarbonyl linkages. The IR and variable-temperature NMR analyses revealed that the dimer is in equilibrium with a monomeric silylyne complex in solution. The silylyne complex underwent [2 + 2] cycoaddition reactions with carbodiimide and diaryl ketones, and in the latter case the cycloaddition product further reacted with another molecule of ketone to give a complex formed through C-C and Si-C coupling.",

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T2 - Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones

AU - Yoshimoto, Takashi

AU - Hashimoto, Hisako

AU - Hayakawa, Naoki

AU - Matsuo, Tsukasa

AU - Tobita, Hiromi

PY - 2016/10/24

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AB - A tungsten silylyne complex having a fused-ring group (Eind) on Si was synthesized from a hydrido hydrosilylene complex via stepwise abstraction of a proton and a hydride and was isolated as an eight-membered cyclic dimer bound through two isocarbonyl linkages. The IR and variable-temperature NMR analyses revealed that the dimer is in equilibrium with a monomeric silylyne complex in solution. The silylyne complex underwent [2 + 2] cycoaddition reactions with carbodiimide and diaryl ketones, and in the latter case the cycloaddition product further reacted with another molecule of ketone to give a complex formed through C-C and Si-C coupling.

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A Silylyne Tungsten Complex Having an Eind Group on Silicon: Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones

Abstract

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